Answer to Q89
Add me to myself and multiply by 4. Divide me by 8 and you will have me once more. What number am I?
Let myself be x
Add me to myself: x + x = 2x
And multiply by 4: 4(2x) = 8x
Then divide by 8: 8x ÷ 8 = x
Answer: Any number in the world!
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