Which number should replace the question mark?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

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?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?