I’m tall when I’m young, and I’m short when I’m old. What am I?

Solve the equation in the image by looking at the pattern closely.

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

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?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?