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

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

A bomb exploded in a room full of married couples and no one died. How?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

How could a baby fall out of a twenty-story building onto the ground and live?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?