I wiggle and cannot see,
sometimes underground and sometimes on a tree.
I really don't want to be on a hook,
and I become a person when combined with book.
What am I?
Answer: A worm.
This riddle appears in the following downloadable PDF files:
Can you solve one of the most famous logic puzzle ever?
Memory Matching game for kids, adults and seniors.
Connect the matching tiles and pop them all.