A man dies of old age on his 25 birthday. How is this possible?

A girl was standing near the window thinking something. All of a sudden she decides something and throws something out of the window. She dies very soon after throwing it. She was perfectly healthy and had no disease or allergy. No one killed her and she did not commit suicide.

Can you think of any possible explanation that is logical as well for what happened there?

Solve the puzzle by telling what does below picture means.

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

How many triangles are there in the picture below?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Which wheel of car does not rotate when you turn your car right?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?