Can you solve the below algebraic mathematical equation?

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

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

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

What four weights can be used to balance from 1 to 30 pounds?

Find the missing number in the image below.

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

I know a nine-letter word having only one vowel.
Do you ?

What is the last thing you take off before bed?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?