One of my favorite puzzles of all time:
In a bookcase, there are three books in the trilogy---Vol. I, Vol. II, and Vol. III.
Each book cover is 1/4 inch.
In Vol. I, the pages accrue to a total of one inch.
Vol. II is exactly one inch thick, total.
Vol. III's pages accrue to a total of 1 1/2 inches.
A bookworm begins nibbling on Page 1 of Vol. I, and nibbles his way through to the last page of Vol. III. Filled to the brim, he lies down for a nap.
How far did he nibble? (ANSWERwill appear on Saturday---anyone else?)