I have leaves but I'm not a tree. What am I?

If you have three apples and you take away two, how many do you have?

Mary's father has five daughters: Nana, Nene, Nini, Nono. What is the fifth daughter's name?

What is the next number in the pattern: 2, 4, 8, 16, …?

What has eight legs and spins a home every night?

What can you catch but not throw?

What can travel around the world while staying in a corner?