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.

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

In the four images below, can you find the odd one out?

The answer I give is yes, but what I mean is no. What was the question?

How many sides does a circle have?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?