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

What makes this number unique: 8,549,176,320?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

Keyboard words are not in alphabetical order, Why?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.