Square Root 12345678987654321

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




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There was an aeroplane crash, every single person died, but two people survived. How is this possible?

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It is Secret Agent Bond Girl Friend's birthday but he is on a secret mission

Mr Bond has a secret device by which he can only use the below words for sending the message.

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Mr Bond sends the following message to her girlfriend:
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Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

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My second is my first of space
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In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki