Can you solve below mathematical equation?

2^1234 - 2^1233

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Decode this picture on T-Shirt and tell what it says ?

What does below Rebus mean ?

esgg sgeg gegs gsge

The LCD device should be able to tell the right time in the format HH:MM: SS in a 12-hour format. You can refer to the picture to get an idea. The device is a simple "level indicator" which has to be converted into a watch. How will you program it to work?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Solve the rebus riddle in the picture below.

You need to move three matchsticks to form three squares. Can you do it?