Easy Riddles and Answers

Question: How do you make the number one disappear by adding to it?

Question: How many letters are in the answer to this riddle?

Question: I'm number three.
But I'm not a number.
I'm hot and cold at the same moment but not at the same time.
I'm number three.
But I'm not a number.

Who or what am I?

Question: What grows when you take from it?

Question: I am apart of everything, including you. Once I die, I will begin anew. As my life status becomes dire, I burn brighter and brighter. What am I?