Logic Riddles

Question: There are two mothers and two daughters. They go to a restaurant and ask for 3 chairs. Why?

Question: There are five people at a table and a pie sliced into 5 pieces. Each person has a piece of pie in front of them, yet the pie tin still has a piece of pie in it. How is this possible?

Question: Connect all 9 of the dots using 4 straight lines or less. Do so without lifting the pen or tracing the same line more than once.

Question: A poor woman takes an expensive piece of jewelry, when she is caught the owner of the jewelry tells her "You can have this for seven figures or you will go to jail." The woman soon leaves with the jewelry.

How did she do this?

Question: What's higher than mountains, Smaller than trees?