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

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Can you count the number of triangles in the given picture?

The more of this there is, the less you see. What is it?

What has lots of eyes, but can’t see?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What does below Rebus say?

XLR8