I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

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?

There is something which is always coming but never arrives?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Count the number of triangles in the picture below:

Count the number of balls in picture below:

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

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