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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Amazon logo
Amazon
Medium
Product Manager

Supporting a Teammate Who Is Falling Behind Without Taking Over Their Work

Describe a situation where a colleague on your team was having a hard time and you chose to step in. What did you do, and how did it turn out? `hint H...

Behavioral & LeadershipMentoring & Team Growth
0
0
9 people solved
May 11, 2024
Google logo
Google
Medium
Product Manager

Business Case and Launch Conditions for a Low-Cost Google Pixel Phone

As a PM on Google's Pixel phone team, what would have to be true for a low-priced, entry-level Pixel to be worth launching? `hint Ask what Google gain...

Product Design & StrategyProduct StrategyBusiness Case Analysis
0
0
3 people solved
Nov 12, 2025
Google logo
Google
Medium
Product Manager

Estimation: Hours the U.S. Spends Washing, Drying and Folding Clothes Each Year

Estimate the total number of hours that people in the United States spend doing laundry over a year, added up across the whole country. Lay out your e...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Jul 10, 2024
Nubank logo
Nubank
Medium
Product Manager

Instagram Features That Help Friend Groups Connect, Plan and Hang Out

You are a product manager at Instagram. How would you improve the way groups of friends interact with each other and socialize? `hint Start from the g...

Product Design & StrategyProduct Design & Improvement
0
0
2 people solved
Apr 16, 2026
Google logo
Google
Medium
Product Manager

Amazon Fake Reviews: Detection Signals, Enforcement Actions and Impact Metrics

Assume that roughly 40% of the product reviews on Amazon are fake. You are a product manager at Amazon and have been asked to tackle the problem. Stru...

Analytics & ExperimentationTrust & SafetyMetrics & KPIs
0
0
7 people solved
Nov 7, 2024
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Check palindrome and find next larger palindrome

This question evaluates proficiency in string and numeric manipulation, specifically palindrome detection and generation of the next strictly larger n...

Coding & Algorithms
6
0
65 people solved
Jan 3, 2026
Meta logo
Meta
Hard
Data ScientistSenior+ Locked

Prove high-quality pixels improve ad performance

Prove high-quality pixels improve ad performance evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and...

Analytics & Experimentation
3
0
45 people solved
Aug 1, 2025
Medium logo
Medium
Medium
Product Manager

Medium customer happiness index: which metrics to use and how to combine them

You are a product manager at Medium, the online publishing platform where people write and read stories. You are asked to calculate a happiness index ...

Analytics & ExperimentationMetrics & KPIs
0
0
5 people solved
Mar 31, 2024
Meta logo
Meta
Medium
Data Scientist

Analyze Mobile Promo Orders with SQL Query and Metrics

orders +-----------+---------+--------------+------------+-----------+----------+ | order_id | user_id | order_amount | order_date | is_mobile | is_p...

Data Manipulation (SQL/Python)
5
0
35 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Hawaii Visitor Health-Rule Compliance: Product to Encourage and Enforce COVID Measures

The State of Hawaii wants travelers arriving in the state to follow its COVID-19 health guidelines, such as keeping physical distance from others, and...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
5 people solved
Aug 30, 2025
Meta logo
Meta
Medium
Product Manager

Instagram commerce go/no-go: factors to weigh and how to validate the bet

Imagine Instagram, Meta's photo and video sharing app, does not yet let people shop, and you are asked whether it should add shopping to its app and w...

Product Design & StrategyProduct StrategyExperiment Design (A/B Testing)
0
0
5 people solved
Feb 12, 2024
TikTok logo
TikTok
Medium
Software Engineer

Implement O(1) randomized multiset

Implement O(1) randomized multiset Write code for a data structure that supports add(x), remove(x), and getRandom() in average O( 1) time where duplic...

Coding & Algorithms
4
0
70 people solved
Jul 17, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Implement inventory allocation with backorders

Implement inventory allocation with backorders Design and implement a function to process an event stream for an e-commerce marketplace. Input: ( 1) i...

Coding & Algorithms
3
0
59 people solved
Jul 17, 2025
Meta logo
Meta
Hard
Data Scientist

Analyze Algorithm's Impact on Diverse Demographics and Validate Causes

Analyze Algorithm's Impact on Diverse Demographics and Validate Causes A/B Test: Heterogeneous Lift in CTR for a New Ad-Ranking Algorithm Context You ...

Analytics & Experimentation
67
0
185 people solved
Aug 4, 2025
Point72 logo
Point72
Hard
Quantitative Researcher

Derive the Optimal Bid in a Two-Bidder Second-Price Auction

Derive the Optimal Bid in a Two-Bidder Second-Price Auction Two risk-neutral bidders compete for one item in a sealed-bid second-price auction. Your p...

Statistics & Math
3
0
48 people solved
Nov 25, 2025
Roblox logo
Roblox
Hard
Software Engineer

Design a Static Audio Detection System

System Design: Static Audio Detection Pipeline Context Design an offline (non-live) audio detection system that processes static audio files (e.g., us...

ML System DesignFile & Media StorageETL & Data Pipelines
16
0
139 people solved
Sep 6, 2025
PayPal logo
PayPal
Medium
Product Manager

PayPal Cost-Structure Case: Building a Plan to Halve Operating Spend

PayPal's leadership wants the company's operating costs cut by 50%, and you are the product leader asked to build the plan. Explain how you would appr...

Product Design & StrategyBusiness Case AnalysisPrioritization & Tradeoffs
0
0
6 people solved
Jan 25, 2024
Meta logo
Meta
Medium
Software Engineer

Compute binary tree diameter

Compute binary tree diameter Given the root of a binary tree, compute the tree's diameter defined as the maximum number of edges on any path between t...

Coding & Algorithms
7
0
84 people solved
Aug 7, 2025
Lyft logo
Lyft
Medium
Product Manager

Lyft Accessibility Design: Making Ride Hailing Work for Blind Riders

You are a product manager at Lyft, asked to design how the Lyft app should work for riders who are blind. Decide what the experience needs to do for t...

Product Design & StrategyAccessibility & Inclusive DesignProduct Design & Improvement
0
0
7 people solved
Nov 11, 2023
Meta logo
Meta
Medium
Product Manager

Measuring Instagram's Swipe-to-Camera Shortcut for Posting Photos

On Instagram, a person on the home feed can swipe left to reach a separate screen; from there they can message friends or open the camera, take a phot...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
0
0
4 people solved
Oct 4, 2024
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