What Time Should the last watch show in the below figure?

Can you solve below mathematical equation?

2^1234 - 2^1233

Solve the mathematical equation in the picture below.

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Through your logical capabilities, can you make 7 an even?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Bay of Bengal is in which state?