A third from the sun, and not much else since the world's begun.
Some may weigh a metric ton. Is a synonym for fun.
Made a zeppelin take flight.
A big thing at Isle of Wight.
Answer: Rock.
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.