Find the missing number in the sequence below:

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

If eleven plus two equals one, what does nine plus five equal?

Who always enjoys poor health?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

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

How many words can a pen with half refill write?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?