What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

What can go up a chimney down, but can’t go down a chimney up?

Replace the question mark with the number below given a simple math problem.

John Went to the nearby store in a Mall to buy something for her home. Below is the conversation between the two:

John: How much for the one?
Shopkeeper: It is $2
John: How much for the Eleven?
Shopkeeper: It is $4
John: How much for the Hundred?
Shopkeeper: It is $6.

What is John buying?

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

If eleven plus two equals one, what does nine plus five equal?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?