Replace the question mark with the correct number.

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

What word is represented by this rebus?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What can you catch but never throw?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

What you cannot hold but it is yours?

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

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???