It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

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

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

How many triangles are there in the picture below?

What can you see in the middle of March and April that you can never see in any other month?

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

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What is black when you buy it, red when you use it, and gray when you throw it away?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?