A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

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Can it be possible to build a house that has all its four walls facing towards the South?

How many times in a given day, minutes and hour clock comes in a straight line ?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Before Mount Everest was discovered, what was the highest mountain in the world?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Can you make a fire with just a single stick?

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?