Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you fill the blank with the correct number?

6 30 870 756030 _____

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

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

How many bananas can you eat if your stomach is empty?

I always drive my customer away.

Who am I?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?