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

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

Complete the table series riddle by finding the number that can replace "??".

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

I add 5 to 9 and get 2. The answer is correct, so what am I?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

I make two people out of one. What am I?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?