Percy did some exercise

We don't have a helmet small enough for Percy so he had to do some cycling in the shed. I wonder what is all that junk beside Percy? He had great fun but his little legs were very tired afterwards.
Percy has a few questions he would like to ask you:

1. Can you cycle a bike?
2. Do you wear a helmet when you are cycling your bike?
3. What colour is your bike?
4. Which do you prefer, cycling up hills or down hills?