Can you solve the photo plexer logic ?

Out of four images which one is the odd one out?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

There are three identical triplets sisters. Demi is the oldest of them all and she always speaks the truth. Diana is the next one who is a liar always. Drew, the youngest of them all speaks both truth and lies randomly.

On a rainy day, a family friend Victor visited them. Since there were starkly identical, he was not able to recognize them. Thus to clarify, he asked one question to each one of them.

He started with the one standing on the left and asked, 'Which sister is in the middle of you three?' She answered, 'That's Demi.'

Then, he asked the one standing in the middle, 'What is your name?' She answered, 'I am Drew.'

Finally, he asked the one standing on the right, 'Who is standing in the middle?' She answered, 'She is Diana.'

Victor was left baffled. He asked the questions three times and received different answers every time.

Can you tell who was who?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

How can you leave a room with two legs and return with six legs?

What does this mathematical rebus means ?