Puzzle 1
What letter comes next in this sequence:
Z · X · C · V · B · N · ?
Puzzle 2
Recently Kevin had a party and because it was his birthday he wanted a mathematical cake!
He ordered a cake in the shape of a cube and had it completely iced (but of course the shop didn't ice the underneath because that just isn't very sensible).
He cut every side of the cake into three equal pieces, giving 27 slices of cake.
He ended up eating all of the pieces of cake that had exactly 2 sides with icing.
So, how many pieces did that leave for the guests?
Puzzle 3
By changing the second letter of each of the words below, can you make another valid word?
You have to change each word such that the second letters will reveal a ten-letter word when read downwards.
Therefore, what now reads 'craihruane' will be a real word.
icon
crew
farm
oily
chop
arid
fund
wait
gnat
tear
Puzzle 4
Can you find every occurrence of the word NOVEMBER that appears in this grid (horizontally, vertically, or diagonally)?
The hint will reveal the number of times it occurs, but where are they?

Note: this puzzle is not interactive, and the letters cannot be selected.