Logic Riddles

Question: How many times can you subtract 10 from 100?

Question: There was once three trees. The first tree did whatever the third tree did, and the third tree did what ever the second one does. What happens if tree number two gets cut down?

Question: 7 frogs are sitting on a log. 1 of them decides to jump off of the log. At this moment how many frogs are on the log?

Question: She lay on her soft bed. She has envy toward us. Why?

Question: IF I WILL TAKE OUT ITS FIRST THIRD AND LAST LETTER STILL IT WILL SOUND THE SAME