Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
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_
"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"
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
"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."
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
"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."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
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."
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
"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."
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
"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."
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
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
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
Role
Medium
Data ScientistDesign and Validate Initial Restaurant Recommendation Model
Design and Validate an Initial Restaurant Recommendation Model You are designing a first-iteration machine-learning model to recommend restaurants to ...
Machine Learning
29
0
114 people solved
Jul 12, 2025
Medium
Data ScientistDiagnose Job Application Decline: Funnel Analysis and Segmentation
Diagnose a Sharp Decline in Job Applications LinkedIn sees a sudden, sharp decline in its Job Application metric, defined broadly as completed job app...
Analytics & Experimentation
73
0
239 people solved
Jul 12, 2025
Medium
Data ScientistGenerate Weekly Revenue and Engagement Summary with Pandas
events | user_id | event_time | event_type | platform | revenue | |---------|---------------------|------------|----------|---------| | 101 ...
Data Manipulation (SQL/Python)
60
0
91 people solved
Jul 12, 2025
Medium
Data ScientistSolve Aptitude Test: Logical, Numerical, Verbal Reasoning
Scenario Pre-employment aptitude screen assessing logical, numerical and verbal reasoning within a strict time limit Question You have 15 minutes to s...
Coding & Algorithms
96
0
291 people solved
Jul 12, 2025
Medium
Data ScientistInvestigate Instacart Revenue Decline Using Weekly Data
Investigate an Instacart Weekly Revenue Decline Instacart's weekly revenue fell 4% versus the prior week. Initially, you only have the historical week...
Analytics & Experimentation
25
0
88 people solved
Jul 12, 2025
Medium
Data ScientistGenerate Friendship List with Acceptance Dates Using Pandas
friend_events | requester_id | accepter_id | request_date | accept_date | |--------------|-------------|--------------|-------------| | 1 |...
Data Manipulation (SQL/Python)
56
0
8 people solved
Jul 12, 2025
Hard
Data ScientistDetermine Player Preference for Local Game Creators
Player Preference for Local Game Creators A Roblox analytics team wants to understand whether players prefer games created by local creators, such as ...
Analytics & Experimentation
31
0
78 people solved
Jul 12, 2025
Medium
Data ScientistAnalyze DoorDash Orders: High-Frequency Customers, Top Spenders, MoM Sales & Bottom-Percentile Reach
orders +-------------+-------------+---------------+---------------------+ | delivery_id | customer_id | restaurant_id | order_place_time | +------...
Data Manipulation (SQL/Python)
80
0
133 people solved
Jul 12, 2025
Medium
Data Scientist LockedDetermine Probability of Shared Videos in Recommendations
Meta statistics and product prompt on video recommendation overlap, covering combinations, probability of shared videos, expected intersection size, s...
Statistics & Math
58
0
116 people solved
Jul 12, 2025
Medium
Data ScientistOptimize Station Sequence for Maximum Car Output in Simulation
Scenario The Car-Building mini-game lets you sequence chassis, engine, and paint stations with limited buffers. Question Describe a strategy to maximi...
Coding & Algorithms
10
0
35 people solved
Jul 12, 2025
Medium
Data ScientistDefine Metrics and Account for Network and Novelty Effects
Metrics for Notification-Triggered In-App Surveys Meta's notification system triggers optional in-app surveys to measure user sentiment after notifica...
Analytics & Experimentation
65
0
89 people solved
Jul 12, 2025
Medium
Data ScientistEvaluate Impact of New Roblox Homepage Tab
Evaluate the Impact of a New Roblox Homepage Tab Roblox plans to replace an existing homepage tab with a new one. The team needs to measure whether th...
Analytics & Experimentation
53
0
149 people solved
Jul 12, 2025
Medium
Software Engineer LockedDesign a Moderated Messaging Service
This question evaluates system design competency, covering scalable distributed architecture, data modeling, API design, integration with external mod...
System Design
2
0
23 people solved
Oct 20, 2025
Easy
Data Scientist LockedCompare performance of FB vs IG Stories
This question evaluates a data scientist's competency in experimental design, causal inference, attribution modeling, metric selection, and decision-o...
Analytics & Experimentation
9
0
87 people solved
Feb 16, 2026
Easy
Data Scientist LockedDetect bots using comment distribution patterns
This question evaluates a candidate's competency in behavioral analytics, feature engineering, anomaly and bot detection, statistical validation, and ...
Analytics & Experimentation
4
0
59 people solved
Feb 16, 2026
Easy
Data Scientist LockedInvestigate why an advertiser’s spend decreased
This question evaluates a Data Scientist's competency in analytics and experimentation—specifically root-cause analysis of ad spend declines, attribut...
Analytics & Experimentation
5
0
67 people solved
Feb 16, 2026
Easy
Data ScientistHow to improve complaint resolution
You are given three related tables for a Wayfair-style e-commerce customer-support dataset. complaints - complaint_id STRING - customer_id STRING - or...
Analytics & Experimentation
2
0
28 people solved
Feb 16, 2026
Medium
Product ManagerImprove Google Maps and Android phones
You are interviewing for a Product Manager role at Google. Address two product strategy questions. Constraints & Assumptions - For Google Maps, choose...
Product Design & Strategy
4
0
57 people solved
Jan 20, 2025
Easy
Analytics Engineer LockedDetect fake accounts and measure their impact
This question evaluates competency in fraud detection, causal impact measurement, experimentation design, and operational analytics for product and ad...
Analytics & Experimentation
3
0
31 people solved
Feb 15, 2026
Medium
Software Engineer LockedImplement a longest-match tokenizer
This question evaluates string-processing and algorithmic implementation skills for greedy longest-match tokenization, including handling runs of unma...
Coding & Algorithms
4
1
73 people solved
Oct 19, 2025