If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

What is the difference between a jeweller and a jailer?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

What English word has three consecutive double letters?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?