Can you find out who is the kidnapper in below Picture and why, Explain ?

I travel all around the world but always stay in the corner. What am I?

What's a single-digit number with no value?

You can see three almost identical images below. Can you spot the odd one out from them?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

In the four images below, can you find the odd one out?

John was writing his first book. After saving the document, he locked his laptop with a password and mentioned some phrases for the hint box.

A friend of his tried opening his laptop but found out that it was password protected. Following is the hint that appeared.
1 mobile 3 books 2 roars 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches.

Can you help him in cracking the password?

Where do fish keep their money?

What is the next number in the series?

15 29 56 108 208 ?

In the picture given below, can you find out which digit will take place of the question mark?