There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What can you deduce from the following BrainBat?

CRY
LMKI

What is the coolest letter in the alphabet?

Why did the Girl throw the butter out of the window?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

How many triangles can you find in this given picture?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.

On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?