Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

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

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

How can a man go eight days without sleep?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

I am lying and I always lie. Tell me whether I am lying or telling the truth.

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?