How many words can a pen with half refill write?

I know a nine-letter word having only one vowel.
Do you ?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

How far can you walk into the woods?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

Count the number of triangles in the picture below:

Find the missing letter in the last circle logically in the given below picture.

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?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?