You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Take one out and scratch my head, I am now black but once was red. What am I?

If your uncle’s sister is not your aunt, what relation is she to you?

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?