Here is one such conversation he recently had with nana at bedtime, when nana was trying to make him sleep (retold by nana):
Kabir: Nana, what is a motorcycle? I know what's a cycle.
nana: Motor cycle does not have pedals. It has a motor which makes it run.
K (lying in bed looking at the ceiling fan): Does that fan also have a motor?
N: Yes it also has a motor which runs on electricity.
K: Is it the same electricity which sometimes goes away and then the fridge, microwave and washing machine stop working?
N: yes it is the same electricity
K: Just like my toy car doesn’t run when it doesn’t have batteries.
N (pleased): Very Good. Yes it is the same type of electricity.
K: Where does electricity come from? Why does it go away?
N: It is produced in power stations and brought in wires.Sometimes a tree falls on a wire during heavy rains and that causes electricity to go away for some time.
K: Where are the wires? I don't see them
N: I shall show you tomorrow. You can see them near the fan, otherwise they are hidden in the wall.
K: No I want to see now.
After some persuasion he agreed to wait till next morning. Next morning he asked to see the wires and then stated showing nana where ever he saw a wire. He thought that the gas tube connected to the gas stove was also a wire.
K: Nana, does motorcycle have a wire?
N: Not of the type in the fan. Motorcycle has its own electricity producing method, because it has to be portable.
Another time -
K: Do airplanes have motors?
N: Yes they do
Yet another time -
K (sitting on the toilet seat looking up at the tube light): Nana, you said that the sun is very hot so it gives light. Is that tube light also hot?
N: Yes it is also hot but not as much as an electric bulb. It is possible to give light without giving too much heat.