There are forty elephants and they have forty-fore heads. How can this be possible?

What is the word or phrase?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

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

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

What Time Should the last watch show in the below figure?