Replace the question mark with the correct number in below Picture:

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

The more you take me, the more you leave me behind.
Who Am I?

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

What English word has three consecutive double letters?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?