Riddles and Puzzles

What goes up white and comes down yellow?

What is full of holes but can still hold water?

What grows when it eats, but dies when it drinks?

What's at the end of a rainbow?

What's always coming but yet never arrives?

2 grandpas, 4 dads, 4 sons went to a movie. What is the minimum number of tickets they can buy?

What goes up but never goes down?

A farmer has 2 haystacks and 8 haystacks. If he combined them, how many haystacks does he have?

When I was born I was big but the older I get the smaller I am. What am I?

How many months have 28 days?