Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What came first, the chicken or the egg?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What does this Rebus Picture mean?

What does this mathematical rebus means ?