Name a key which is hardest to turn.

If 1+9+8=1, what is 2+8+9?

A man dies of old age on his 25 birthday. How is this possible?

What is black when you buy it, red when you use it, and gray when you throw it away?

Can you spot the hidden girl in the picture below?

Can you place three balls such that the equation shown in the picture holds true?

Which number comes next in the number series?

2, 9, 30, 93, ?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Why Wine Glass Stem is so long?

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?