Count the number of lines in the image below ?

How can you make number one disappear by adding something to it?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

What kind of storm is always in a rush?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

In the given picture, in how many ways can you read the word "Tiger"?

John was piloting a plane behind a car but was never able to overtake it. Why?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which tank will fill first?