Thinking Up Horsey Quiz for Relatives

My mom is putting together a family birthday party for me next Monday, and she wants it to be horsey themed. I thought it might be fun to have a quiz with questions about horses. I was wondering if you guys could help me think of some questions. My relatives know nothing about horses, so I don't want the questions to be too hard. I was thinking that I would have some multiple choice questions. Thanks!

Awesome idea!

What type of horses are used for racing at the Kentucky Derby?
What is the soft spot in the middle of the horses hoof called?
Who trims a horses feet?

I'm blank now. Lol.