What is the below Rebus indicate?

Why is 6 afraid of 7?

I can write cow in 13 letters.

Can You?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

Can you solve the below tricky visual equation?

What type of tree can I carry in my hand?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

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

What can go through glass without breaking it?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?