What goes up but never comes down?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

What is next number in the pattern below:

131 517 192 123 ?

Can you place three balls such that the equation shown in the picture holds true?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?