Replace the question mark with the correct number.

I’m orange, I wear a green hat and I sound like a parrot. What am I?

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

What has a bottom at the top?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

The centre of the third figure is empty. What digit should fit inside?

What is the next number in the series?

15 29 56 108 208 ?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?