If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What goes up but never comes down?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

what does the below rebus mean?