Fun Riddles

Question: How can you flip the shape upside down by moving only two of the sticks?

Question: Can you rearrange the letters in new door to make one word?

Question: Wednesday, Tom and Joe went to a restaurant and ate dinner. When they were done they paid for the food and left. But Tom and Joe didn't pay for the food.

Who did?

Question: There are two boys at an international math contest in December 2013; one is British and one is American. They both write their names, the date, and their answers on the paper. The only problem is that they both have the same name and the papers cannot be told apart.

What is the date?

Question: You put me in dry but then I get wet.
The longer I stay in, the stronger it will get.

What am I?