Kids Riddles

Question: There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Question: How do you make the number one disappear by adding to it?

Question: What was the president of the United State's name in 1980?

Question: I'm the part of a bird that's not in the sky,
I can swim in the ocean and remain dry?

What am I?

Question: What is a ghost's favorite dessert?