Ages of Daughters

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?




Similar Riddles

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It's pretty hard to give up.
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Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

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How many candles Sayna have at the end?

Light the Candles

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Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Value of the Symbols

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I can sizzle like bacon,
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Find the missing part

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Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.