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Complete the missing letters of the given word.

I know a nine-letter word having only one vowel.
Do you ?

Can you write down eight eights so that they add up to one thousand?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If a wheel has 54 spokes, how many spaces are there between the spokes?

If you say my name, I will no longer exist. What am I?

How many times can you subtract the number two from the number fifty?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?