I come without warning, I’m sudden and quick. Sometimes I’m loud, and sometimes I’m slick. I make people bless you, though I’m not divine. A tickle in your nose is often my sign. What am I?

Riddle: I come without warning, I’m sudden and quick. Sometimes I’m loud, and sometimes I’m slick. I make people bless you, though I’m not divine. A tickle in your nose is often my sign. What am I?

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Sneeze.