1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

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

Count the number of triangles in the given picture.

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

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"

What kind of band never plays music?