Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

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

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What came first, the chicken or the egg?

Can you find out what is missing?

1 3 5
2 4 ?

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

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

What number when divided in half becomes zero?