If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find out the missing number in the picture attached:

What does this simple rebus mean?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Count the number of triangles in the picture below:

What number divided by 4 is the same as that number minus 4?

Can you spot the hidden girl in the picture below?

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

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?