Medium
Bathroom Riddle
How can you make a needle float?
Choose an answer
A.Heat the needle first
B.Use salt water only
C.Attach it to a cork
D.Take a thin piece of tissue paper and place the tissue paper under the needle before putting it in water.
Answer: Take a thin piece of tissue paper and place the tissue paper under the needle before putting it in water.
The tissue paper supports the needle on the water's surface tension until the paper dissolves and sinks away, leaving the needle floating.
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Hard
Bathroom Riddle