I can write cow in 13 letters.

Can You?

You can hear me, but you can't touch or see me.

What am I?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Replace the question mark with the correct number below.

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Decode the below four famous ciphers:

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

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?