Good Riddles

Question: Before man discovered Mt. Everest, what was the tallest mountain in the world?

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: If you have a cake, how many pieces of cake can you form with 3 straight cuts?

Question: Hold me by the neck and I won't mind,
if I get wrong I just need a good wind.
If you want me you better pick wisely,
just use your ears and I'll follow you blindly.

What am I?

Question: Drop me and the world will shatter,
and you can always find me where you empty your bladder.

What am I?