You find your mass to be 42 kg on a weighing machine. In your mass more or less than 42kg?

You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42kg?

You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42 kg ?

You find your mass to be 42 kg on a weighing machine. If your mass more or less than 42 Kg?

You find your mass to be 42 kg on a weighing machine is your mass more or less than 42 kg ?

You have a bag of cotton and an iron bar, each indicating a mass of 100 kg when measured on a weighing machine. In reality, one is heavier than other. Can you say which one is heavier and why ?