I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

How many triangles can you find in this given picture?

Move three sticks of the spiral below to form a square.

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

Which country gets ill every time?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

You see me once in June, twice in November, and not at all in May. What am I?