Can you count the number of quadrilaterals in the picture below?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

Which is the smallest number that you can write using all the vowels exactly once?

What is red and smells like blue paint?

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?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

There is something which is always coming but never arrives?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?