Can you solve these riddles? Whoever gets the most correct gets 10 pts!?!

Can you solve these riddles? Whoever gets the most correct gets 10 pts!?

1. You are in a dark cave, you have a kerosene lamp, a match, a stick of dynamite, and a gas stove, which do you light first?

2. What gets larger the more you take away from it?

3. You are in a room with no windows, a door, and a mirror, how do you get out? (obscure answer)

4. What can you put into a barrel to make it lighter that can be seen with the naked eye?

5. What can knock down mountains, but build castles, it can make one man blind, but help another man see?

6. What crawls on four legs in the morning, two legs in the afternoon, and three legs in the evening?

7. Joe walks into a store, there's a pile of oranges there. He takes half the pile of oranges, plus half an orange. Frank walks in behind him, takes half of the oranges that are left, plus half an orange. Betty comes in and takes half the oranges that are left, plus half an orange. After she leaves, all of the oranges are gone, and none of the oranges have been cut, how many oranges were there to begin with?

3 weeks ago
Number 3 is written wrong! Sorry!

3. You are in a room with no windows, no doors, a table and a mirror, how do you get out?

the match
a hole
You look in the mirror, see what you saw, use the saw to cut the table in half, put the two halfs to make a "hole", use the hole to get out
a hole/ light
Sand
a human
9????