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

I travel all around the world but always stay in the corner. What am I?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Replace the question mark with the correct number in the below-given picture?

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 = ?

Solve the counting riddle by identifying the number of triangles in the given picture.

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.