Reasoning
For a 31-day month, such as March, to have 5 Saturdays and 5 Mondays the 1st must be a Saturday (and the 31st a Monday).
You can then work forwards from the 1st.
?
Puzzle 171
Apparently, one side of a cat has more hair. The findings of the scientific establishment have been corroborated by a special enquiry by the BB Feline Federation. Many hair counts were taken of the side in question and consistently it was found to contain more hairs. The scientists determined that more hair was required on this side to insulate the cat from the elements while it was lying down. Perhaps you would like to examine a cat to confirm the findings. Before you do, can you guess which side of a cat has more hair?
Place letters into the grid such that every row, column, and 2 x 2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.
Letters allowed: C O L U M B U S
D
K
P
E
T
E
L
A
Note: this puzzle is not interactive, and the squares cannot be clicked.