Can you start the fire using two pieces of wood?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

Can you divide the below-given shape into four equal and identical pieces?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Solve the puzzle by telling what does below picture means.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?