The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

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?

What word does this rebus represent?

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What is the next number in this matchsticks series riddle?

What has hands, but can’t clap?

Can you solve the photo plexer logic ?

By what process could you make a 'Tea-Table' into food?

What has one letter and starts with an E?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?