In the image below, can you find the value of an angle(y)

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

What time is it when an elephant sits on a fence?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Why do you find that most of the buildings are deprived of the 13th floor?

Count the number of triangles in the given picture.

What is the below Rebus indicate?

If two's company, and three's a crowd, then whats four and five ?