Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Can you count the number of triangles in the given picture?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Can you make four (4) nines (9) equal 100?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Why do you find that most of the buildings are deprived of the 13th floor?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?