MARK COLLINS GIVES TOBY A RIDDLE TO HELP HIM IDENTIFY WHO HAPPYS HUSBAND IS. THE RIDDLE GOES LIKE THIS:
"The water doesn't lie still, but the water still lies. Add 50, and your answer will be revealed."
Now, in Roman numerals, 50 is written as 'L'.
The riddle translated would mean: "Look deep in the water, and add 50."
Water + L = Walter.
WALTER IS HAPPYS HUSBAND. I'm almost 100% certain that I'm not wrong on this.