What is gold when old, but silver when new
Hard to find, and easy to lose
Costs a lot, but is free
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A Riddle a Day -- 78 Logical and Mathematical Puzzles
RandomSome riddles and brainteasers to give you a little something to think about each day!
Day 11 -- Riddle
What is gold when old, but silver when new
Hard to find, and easy to lose
Costs a lot, but is free
