Sign up

Hello! It seems you want to check your solution for one of our puzzles. We review all the solutions on the website by hand and will gladly review yours!

But first, it is important for us to make sure that you are not a robot :)

Please take a test from Megamind by solving 3 problems — these problems are easier those that are published on the website. All answers are numerical.

Megamind has a bag of clean socks in his dark closet. The bag contains 10 pairswhite, 20 pairs black, and 30 pairs blue socks. What is the minimum number of socks fromthe bag Megamind needs to pull out so that he can guarantee to wear a pair of the same color?

Name the following member of the sequence: 2 3 5 7 11 13 ...

How many different natural divisors does the number 90 have?

Login
E-mail
We'll send you a password if you forget it
Password
Confirm your password

You need to solve 3 puzzles from 3, and then to chose login, password, provide e-mail