using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Can you find the missing piece of the Porsche?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Find the smallest sentence with all the English alphabet.

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?