I have a shiny silver tongue, a hollow stomach, and I spend all day leaping in and out of hot liquids. What am I?

I have four legs in the morning, two legs in the afternoon, and three legs in the evening, but if I trip, I need an ambulance. What am I?

I start my day with a stiff neck, spend hours getting dragged across a desk, and end up completely bald. What am I?

I have a neck but absolutely no head, and I wear a tight cap that someone else always has to twist off. What am I?

I am round as a planet, full of hot air, and if you let me go outside, I will float away forever. What am I?

The more of me you take away from the pile, the larger the overall pile instantly becomes. What am I?

I have a spine made entirely of glue and paper, but I have no bones, no voice, and can transport you to Mars without moving an inch. What am I?