Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What has no start, end, or centre?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

What goes up but never comes down?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Can you find the dog hidden in a group of pandas?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

Move four matchsticks to the below square to form three squares?