If two's company, and three's a crowd, then whats four and five ?

Which is the smallest number that you can write using all the vowels exactly once?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Can you move 2 matchsticks to form four equal sized squares.

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?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Replace the question mark with the correct number below.

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744