N, because it is not in the first half of the alphabet.
9 - all the rest are prime
Most probably 48.
The answer is 12 every other numbers are odd numbers, but 12 is an even number
3 ((9-2)(7+1)(8-2)(6+1)(7-2)(5+1))
The "pairs" in the sequence are doubles of themselves, e.g (1,2) , (5, 10), (13, 26) but for 29 and 48 neither are doubles or halves of each other. However I'm not sure how you know which of 29 or 48 is the odd one out.
The answer is KThe letter should be L
30
You could make a case for any of them.
8
9 - all the rest are prime
All the words' letters are in alphabetical order except PRISM.
K - The pattern is to skip one letter of the alphabet in between each - between D and F there would usually be a "D", between F and H a "G" and so on.
Most probably 48.
133 ,because all haveroot squares except 133
If the series is plus one, times two, plus one, times two, etc., the 8 does not belong.
You have to find a pattern in the numbers, and exclude the one that messes up the pattern.
The letters 'ustoodwernj' = justone word.