What is the next number in this matchsticks series riddle?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

Why did Buffon take the goal with him after every Juventus match?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

Which is the correct shadow of the bird?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title