Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What is the longest word in the dictionary?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

What has 13 hearts but no other organs?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

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?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

Can you name four days which start with the letter 'T'?

what does this picture(rebus) riddle means ?