Good Riddles

Question: What does a black woman and the bottom of my shoe have in common?

Question: I have mountains but no heights I have seas but no water I have forests but no trees I have North & South & East & even West, but no direction What am I?

Question: What room can no one enter?

Question: What begins and has no end, and ends all things that begin?

Question: You use a knife to slice my head and weep beside me when I am dead.

What am I?