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

What came first, the chicken or the egg?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Can you write down eight eights so that they add up to one thousand?

Find the missing number in the series below

13 -21 34 -55 ? -144

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

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

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?