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?

A man dies of old age on his 25 birthday. How is this possible?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Find out the number of circles in the given picture having Illusion

Find out the missing number in the picture attached:

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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