Can you solve below mathematical equation?

2^1234 - 2^1233

Our product and our sum always give the same answer. Who are we?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

With the help clues provided in the image, can you find the 5 digit key?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

Can you find the hidden animal in the picture below?

What is the word or phrase?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.