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?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

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

What country can make you shiver?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Identify the 10 differences between the two given pictures.

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?