I shave every day, but my beard stays the same. What am I?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Why do people go to bed?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

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?