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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
Google logo
Google
Medium
Product Manager

Fermi estimate of the trains running on New York City's subway network

How many trains does New York City's subway run? Produce an estimate you can defend: agree with the interviewer on what you are counting, build an equ...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Aug 24, 2024
Meta logo
Meta
Hard
Product Manager

Product Metrics & Debugging Scenarios

Product Metrics and Debugging Scenarios You are a PM candidate evaluating data, metrics, and operational plans for large-scale consumer products. Answ...

Product / Decision Making
15
0
81 people solved
Jul 4, 2025
Meta logo
Meta
Medium
Product Manager

Reels in Meta's Long-Term Strategy and the Case for an Instagram-First Launch

Meta, the company formerly named Facebook, runs several apps, including the Facebook app and Instagram. It introduced Reels, its format for short, ver...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
5 people solved
Sep 24, 2024
Google logo
Google
Medium
Product Manager

Apple Tablet Market Sizing: European iPad Unit Sales for 2019

How many iPads were sold across Europe during 2019? You cannot look anything up, so build the estimate from assumptions you state and explain out loud...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jun 20, 2024
Microsoft logo
Microsoft
Medium
Product Manager

Reimagining the Bedside Clock Radio for a Phone-First Generation

As a product manager, you are asked to rethink the radio alarm clock, the bedside device that wakes people with an alarm and plays the radio, for the ...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
4 people solved
Jun 10, 2025
Google logo
Google
Medium
Product Manager

Product Sense: Making Remote Learning Work Better for Students and Teachers

You are a product manager at Google, and you are asked how you would improve remote learning, where students and teachers take part in classes and cou...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
5 people solved
Jun 23, 2025
Google logo
Google
Medium
Product Manager

Design Google's books product from scratch: users, pain points, MVP and metrics

Suppose Google had never built a books product, and you are the product manager asked to create one from scratch. Decide what the product should be an...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
8 people solved
May 2, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: Rethink the Way People Share News Stories on Facebook

You are a product manager at Meta. How would you improve the experience of sharing news on Facebook? Decide what the improvement should achieve, pick ...

Product Design & StrategyProduct Design & ImprovementTrust & Safety
0
0
4 people solved
Aug 9, 2024
Google logo
Google
Medium
Product Manager

Child-Safe Heater Product Design: Hazards, Parent Controls and First Version

You are asked to create a heater intended for children. The brief is open on purpose: you decide what kind of heater it is, which children and which a...

Product Design & StrategyProduct Sense
0
0
4 people solved
Aug 29, 2024
Meta logo
Meta
Medium
Data Scientist

Calculate Weekly Thread Engagement with Reactions in SQL

messages +------------+--------+----------+--------------+---------------------+ | message_id | sender | receiver | has_reaction | timestamp ...

Data Manipulation (SQL/Python)
81
0
214 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Build a trusted, locally relevant COVID-19 guidance product for the public

You are asked to design a product that keeps people informed about the coronavirus that causes COVID-19. Explain whom it serves, what information it d...

Product Design & StrategyProduct Sense
0
0
4 people solved
May 11, 2024
J.P. Morgan logo
J.P. Morgan
Medium
Quantitative Researcher

Return Every Integer Whose Neighbors x-1 and x+1 Are Both Absent From the Array

Given an integer array nums, return its lonely values. A value x that occurs in nums is lonely when neither x - 1 nor x + 1 occurs anywhere in nums. T...

Coding & AlgorithmsArrays & Strings
0
0
1 people solved
Jun 29, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Analyze Trends to Diagnose Decline in Job Applications

Diagnosing a Week-over-Week Drop in Job Applications A job marketplace observes that daily application count has declined week over week. As the analy...

Analytics & Experimentation
20
0
65 people solved
Jul 12, 2025
Ask Media Group logo
Ask Media Group
Medium
Product Manager

Benchmark Ad Prices by Format: Display and Video CPMs, Search CPCs, Takeovers

In a product manager interview at Ask Media Group, you are asked what price ranges you have seen for online advertising. Give typical ranges for the m...

Product / Decision MakingGrowth & Monetization
0
0
7 people solved
Jun 29, 2025
Amazon logo
Amazon
Medium
Product Manager

Winning credibility with senior teammates who doubt your leadership as a PM

You are a product manager at Amazon. The people on the team you lead have more experience than you do, and because of that gap they don't respect you ...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
0
0
5 people solved
May 30, 2025
Google logo
Google
Medium
Product Manager

Max Partnership Pricing: Valuing a Branded HBO Button on Roku's Remote

You are the product manager for Max, the streaming service from HBO. Roku wants to put a dedicated HBO button on its new remote control. How much shou...

Product / Decision MakingBusiness Case AnalysisEstimation & Market Sizing
0
0
3 people solved
Jun 18, 2025
Meta logo
Meta
Medium
Product Manager

Meta Product Sense: Helping Facebook Users Choose a Trusted Local Dentist

Someone needs to find a dentist. How would you use Facebook to help them do it? Treat this as a product problem: decide whom you are solving for, what...

Product Design & StrategyProduct Sense
0
0
4 people solved
Aug 1, 2024
Google logo
Google
Medium
Product Manager

Fermi estimate of how many hotel properties New York City has

How many hotels does New York City have? Give an estimate with a sensible range, show the equation behind it, and say which of your inputs you trust l...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Aug 24, 2024
Newton School logo
Newton School
Medium
Product Manager

Funnel optimization: ranking leaky steps by recoverable conversions

A product's conversion funnel has several steps, and users drop out at every one of them. Which step would you work on first, and how would you decide...

Product / Decision MakingPrioritization & TradeoffsUser Behavior & Funnels
0
0
2 people solved
Jun 2, 2025
Meta logo
Meta
Easy
Data Scientist

Percentage of French Daily Active Users Who Were on a Video Call Yesterday

A product logs one-to-one video calls and keeps a daily snapshot of every user. Write a query that returns the percentage of daily active users from F...

Data Manipulation (SQL/Python)SQL
0
0
2 people solved
Apr 26, 2024
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