A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

A man dies of old age on his 25 birthday. How is this possible?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Can you find the hidden animal in the picture below?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

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 ?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

I can be cracked, made, told, and played. What am I?

How many bananas can you eat if your stomach is empty?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.