A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

I am an odd number. Take away a letter and I become even. What number am I?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

What four weights can be used to balance from 1 to 30 pounds?

How can you make number one disappear by adding something to it?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What does does this rebus picture means ?