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?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

They are three errirs in this question. Can you find them?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Name a key which is hardest to turn.

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 ?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

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