A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

By moving just one matchstick, you need to make the below statement true. Can you do it?

What Does this text mean:

important=important

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Find the missing number in the sequence below:

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

I have branches, but no fruit, trunk or leaves. What am I?

What can jump higher than a building?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.