Puzzles - Missing letters puzzles

Exercise : Missing letters puzzles
7.
Answer
:
W
Explanation
:
Starting at the top left and moving down, then right one column and up etc in a snakes and ladders pattern, letters move through the alphabet 4 letters at a time.

8.
Answer
:
B
Explanation
:
In each row, add the numerical value of the left and right hand letters together and write the letter with the reverse alphabetical value in the centre.

9.
Answer
:
T
Explanation
:
Starting at F and moving anti-clockwise, letters move through the alphabet in steps of 2, 3, 4, 5 etc.