Puzzle 1
Can you make this equation correct by moving exactly one matchstick?

Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are:
Puzzle 2
The same three-letter word has been removed from all of these words, leaving the letters below (which are still in the correct order).
What was the three-letter word?
loe
ch
she
er
vae
Puzzle 3
Can you find every occurrence of the word FEBRUARY 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.
Puzzle 4
How many squares of any size on this chessboard do not contain a rook?