Good Riddles

Question: Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation.

Note: Each must be used exactly once and no other numbers or symbols can be used.

Question: I have lakes with no fish.
I have roads with no cars.

What am I?

Question: Timmy's mother has three children. The first was named April. The next was named May.

What is the final one's name?

Question: My first two are male, and my first three female.
My first four save them both, and my whole is a female of the same sort.

What am I?

Question: No matter how much rain comes down on it it won't get any wetter.

What is it?