I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What word begins and ends with an E, but has only one letter?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

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

What is the centre of gravity?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?