Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What do you call a fish without an eye?

Can you name some countries which do not have the alphabet 'A' in them?

Can you find out the missing number in the grid?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Can you count the number of squares in the figure below?

What kind of band never plays music?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

What is the last thing you take off before bed?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?