Good Riddles

Question: Sometimes, I leave you with “mixed” feelings. More times than not, I teach you a lesson. I give what I didn’t create. What am I?

Question: What is white and has black all over it?

Question: Men are just as small as stars to me but men can see me while the stars cannot. I am a reflection of the ocean and fire but never earth though without an earth you cannot have me.

Question: I move faster in certain solids, but slower in certain gases. I am typically broken by objects with large masses. I can be used as for pleasure, practice, and even an alarm. If used excessively, I can cause harm. What am I?

Question: What is the only place you leave without entering it?