A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Why do we preferably have round manhole covers and not square ones?

What do you see in the image below

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

I am white when I am dirty, and black when I am clean. What am I?

What is the coolest letter in the alphabet?

How can you write nineteen in a manner that if we take out one, it becomes twenty?