Can you solve the maths in the below-given picture equation?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Who are the happiest people in IPL match?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

What question can you never answer yes to?

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?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?