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?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

Find the smallest sentence with all the English alphabet.

why number 8549176320 is one of a kind?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Count the number of triangles in the below picture?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?