Can you count the number of quadrilaterals in the picture below?

Which country gets ill every time?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

Count the number of triangles in the below picture?

What number do you get when you multiply all of the numbers on a telephone's number pad?

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