Why is the longest human nose just 11 inches?

What does below Rebus say?

XLR8

My location can be determined by the below rebus.
So where am i ?

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?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What brings you down but never up?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What does below pictogram mean?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?