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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
454
Companies
967
Updated
10.18.2026
454 Questions 967 Companies10.18.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
CARS24 logo
CARS24
Medium
Product Manager

Sizing CARS24's used-car transaction volume after the first COVID-19 lockdown

Estimate how many cars have been sold through CARS24 since the first COVID-19 lockdown in March 2020. CARS24 is an online platform for buying and sell...

Product / Decision MakingEstimation & Market Sizing
0
0
8 people solved
May 12, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Fermi Estimate: Filling a 50-Meter Competition Pool With One Garden Hose

Estimate how long it would take to fill an Olympic-size swimming pool using one garden hose. `hint Two numbers decide it The answer is the pool's volu...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
May 21, 2025
Dropbox logo
Dropbox
Medium
Product Manager

Estimate Dropbox's Addressable Revenue Among Small and Mid-Sized Businesses

Estimate the size of the small and medium-sized business market for Dropbox. `hint Define the unit, then the buyer Settle whether the answer is in bus...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Nov 24, 2024
Agoda logo
Agoda
Medium
Product Manager

Fermi Estimate: Tennis Balls Packed Inside a Passenger Airliner

Estimate how many tennis balls would fit inside an airplane. Talk through your assumptions and your arithmetic as you go. `hint Break the plane into s...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jun 10, 2025
Google logo
Google
Medium
Product Manager

Estimate China's Red Car Population and How You Would Measure It

How would you figure out how many red cars there are in China? Explain the approach you would take. Reason your way to a number with each assumption l...

Product / Decision MakingEstimation & Market SizingSampling & Estimation
0
0
5 people solved
Aug 31, 2024
Google logo
Google
Medium
Product Manager

Fermi estimate of a big San Jose auto dealer's yearly tire volume

Estimate how many tires a single large car dealership in San Jose, California buys in one year. Talk through your assumptions and your arithmetic. `hi...

Product / Decision MakingEstimation & Market Sizing
0
0
3 people solved
Feb 3, 2026
Amazon logo
Amazon
Medium
Product Manager

Estimate Customer Reviews Posted on Amazon.com on a Typical Monday

Estimate the total number of customer reviews posted across Amazon.com on any given Monday. Walk the interviewer through how you scope the question, t...

Product / Decision MakingEstimation & Market Sizing
1
0
14 people solved
Sep 8, 2024
Uber logo
Uber
Medium
Product Manager

Estimation Case: Yearly Dollar Value of US Food Delivery Orders

How large is food delivery in the United States? Give a yearly dollar estimate and walk through how you got there. `hint Pick the unit first Decide wh...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Nov 17, 2024
Meta logo
Meta
Medium
Product Manager

Adapting a Mature Ride-Hailing App to the Needs of Older Riders

You are a product manager for an established ride-sharing app, a widely used service where riders book trips with independent drivers. Improve the pro...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
7 people solved
Jan 28, 2026
Google logo
Google
Medium
Product Manager

Grow a Solar Installation and Maintenance Company Tenfold in Two Years

You are a product manager at a company that deploys solar technology, including solar panels: it installs the systems and provides maintenance service...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
Apr 14, 2026
Google logo
Google
Medium
Product Manager

Fermi Estimate: Total Bricks in New York's Building Stock

In a product manager interview, you are asked to estimate the number of bricks in New York. You have no access to data, so build the estimate from qua...

Product / Decision MakingEstimation & Market Sizing
1
0
8 people solved
Mar 28, 2025
Amazon logo
Amazon
Medium
Product Manager

Estimating Average and Peak Concurrent Facebook Users Worldwide

Estimate the number of people using Facebook at a single moment in time. `hint Turn a day into a minute Start from a daily figure you can reason about...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Dec 15, 2024
Amazon logo
Amazon
Medium
Product Manager

Deriving the Number of Hexagon Panels on a Classic Soccer Ball

How many hexagons does a football have? Commit to a number and walk the interviewer through the reasoning that gets you there; the way you reach the a...

Product / Decision MakingEstimation & Market SizingPuzzles & Brainteasers
0
0
12 people solved
May 31, 2024
Uber logo
Uber
Medium
Product Manager

Estimate Annual Passenger Journeys on London's Tube Network

How would you work out how many trips people take on the London Underground, the city's subway network, over one year? You have no data in the room, s...

Product / Decision MakingEstimation & Market Sizing
0
0
10 people solved
Dec 22, 2024
Flipkart logo
Flipkart
Medium
Product Manager

Define metrics for missing assortment on Flipkart and plan how to close those gaps

You are a product manager at Flipkart. Explain how you would measure selection gaps on the marketplace, meaning cases where shoppers come for somethin...

Product Design & StrategyMetrics & KPIsPrioritization & Tradeoffs
0
0
8 people solved
Apr 30, 2025
Google logo
Google
Medium
Product Manager

Sourcing and Vetting Tutors for a Google Tutoring Marketplace Launch

You are a product manager at Google, which is launching a new online tutoring service. How would you recruit the tutors it needs? `hint Supply follows...

Product Design & StrategyGrowth & MonetizationTrust & Safety
0
0
3 people solved
Jun 3, 2025
Google logo
Google
Medium
Product Manager

Choose the Industry Where AI Could Create the Most Value and Defend the Choice

AI is advancing quickly, but it will not reshape every industry to the same degree. In your view, which industry does AI have the most potential to tr...

Product Design & StrategyProduct StrategyAI Product Management
1
0
9 people solved
Feb 2, 2026
Google logo
Google
Medium
Product Manager

Day-One PM Plan for a Tenfold Jump in Google Home Device Sales

Leadership wants Google Home sales to reach ten times their current level. It is your first day as the product manager who owns Google Home. How would...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
May 31, 2024
Sunrun logo
Sunrun
Medium
Product Manager

Market-Entry Plan for a Premium Ice Cream Brand Expanding into Chocolate

Your company sells premium ice cream, and leadership has already decided to expand into premium chocolate. As the product leader for the expansion, ex...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
10 people solved
May 1, 2025
Google logo
Google
Medium
Product Manager

Estimate Annual Footwear Sales Across Europe in Pairs and Euros

You are asked to estimate the size of the shoe market in Europe. Walk the interviewer through how you would arrive at a number: the scope you pick, ho...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Feb 15, 2025
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