Welcome to perplexus.info, flooble's perplexing puzzle portal. Here, we collect all sorts of puzzles, from simple logic questions and word tricks to in-depth math problems like probability and geometry. Click around and see if your brain is up to the task! If you're new here, make sure you sign up so that you can leave comments and submit your own problems!
Given the number 188188...188 (number 188 is written 101 times). Some digits of this number are crossed out. What is the largest multiple of 7, that could happen?
Given a 3x3x3 cube, a 4x4x4 cube and a 5x5x5 cube, divide each cube into three pieces so that the nine pieces can be put together to make a 6x6x6 cube.
Latest: 
Bonus: 
