Hint
Convert the letters to positions in the alphabet.
Answer
M.
Reasoning
These are letters that occupy prime number positions in the alphabet:
b = 2
c = 3
e = 5
g = 7
k = 11
m = 13 *
q = 17
s = 19
w = 23
??
Puzzle 3
What four-digit number has Digit 1 three smaller than Digit 4, which is one more than Digit 2, which is twice Digit 3, which is one more than one third of Digit 4?
Hint
'in the back of the net' begins with the letter G.
Answers
good = not bad
wood = forest
wool = sock material
cool = not hot
cowl = hooded robe
coil = spiral of wire
soil = earthy ground
foil = roasting metal
foal = baby horse
goal = in the back of the net