Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

What is at the end of a rainbow?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

When is the top of a mountain similar to a savings account?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

I make two people out of one. What am I?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H