Good Riddles

Question: Mary's father has three kids one is Alexis the second one is jolly who's the third?

Question: What's green & yellow & red all over

Question: What is a cat's favourite colour?

Question: What has 4 legs but cannot walk 2 eyes and can see. 2 ears that can hear better than yours.

Question: What arrives at the end and can occur several times a day, once every month, or last millions of years?