Can you find the odd number in the following?

2716, 4135, 5321 and 7145

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Spot what is wrong here in below Picture?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?