If You Say My Name I Am No More

Riddle: If you say my name I am no more. What am I?

Answer: I am Silence. You are silent until u speak. When you say silence you break it. Therefore, silence does not exist when you say "it's" name.

Source: https://www.riddles.com/1175

If you say my name I am no more. What am I? — If you say my name I am no more by Anonymous v1.

Riddle: If you say my name I am no more. What am I? Answer: I am Silence. You are silent until u speak. When you say silence you break it. Therefore, silence does not exist when you say "it's" name. — by Anonymous v2.