Real Dev - Real-life coding skill challenge
PMInterview - Practice product management interview questions
hackattic - No nonsense, real world programming challenges
Interviewlab - Stop wasting your time searching job interview questions
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.