On a bright sunny day, two fathers took their son fishing in the lake. Each man and son were able to catch one fish. When they returned to their camp, there were only three fishes in the basket. What happened?

PS: None of the fish were eaten, lost, or thrown back.

What goes up but never comes down?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Prove that the below maths equation is true.

8 + 8 = 91

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

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

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

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?

You can hear me, but you can't touch or see me.

What am I?