Fun Riddles

Question: There are 4 tea cup (you must say 4 tea cups as in 40 cups) 3 fall down and smash how many are left

Question: Say silk ten times. Now answer this question: what does a cow drink?

Question: What did the dog tell his owner when the owner was going to buy a cat?

Question: Which city is the dangerous city in the world?

Question: I am a 3 letter word spelled with 3 different letters, and if you reverse the spelling of the word, it will sound the same. What word am I?