When we see 2 but call 10?

What kind of storm is always in a rush?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

What does this rebus means ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C