Can you count the number of triangles in the given figure?

Out of four images which one is the odd one out?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

I am white when I am dirty, and black when I am clean. What am I?

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

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

What is the next number in this series?

4,12,84,3612....

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?