Good Riddles

Question: I have a large family. I have just as many brothers as i do sisters. Each of my sisters has only half as many sisters as brothers. How may brothers and sisters are there in my family all together

Question: What kind of shoes do all spies wear?

Question: What do you call two banana peels?

Question: What is always hot in the refrigerator?

Question: I'm very very strong but always hidden, eventually, my time will come and I'll fit in, what am I?