I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

When 99 is considered higher than 100?

What is the centre of gravity?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Which number comes next in the number series?

2, 9, 30, 93, ?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.