In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Why do we preferably have round manhole covers and not square ones?

Which is faster, Heat or Cold ? Explain.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Can you make a six-letter word using the letters N, A and B ?

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

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?