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?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Which wheel of car does not rotate when you turn your car right?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Can you solve the rebus below?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?