You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Can you find the mistake in the below statement?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

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?

If eleven plus two equals one, what does nine plus five equal?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?