Replace the question mark with the correct number.

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

Can you find the key in the picture below?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

What is full of holes but still holds water?

Which is the smallest number that you can write using all the vowels exactly once?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?