What number should come in place of the question mark below?

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

What is next number in the pattern below:

131 517 192 123 ?

What is the next number in this matchsticks series riddle?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Solve the mathematical equation in the picture below.

I have branches, but no fruit, trunk or leaves. What am I?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?