Perplex City: Season 1, Cards #021 - #024

Continuing my Perplex City solutations. Spoilers!

• #021 - Divide By Three: This only took me a few minutes of dri... thinking (ROFFLE. SEE WHAT I DID THERE? HOoOOoO BooYYY!) Each of the three persons gets 2 full glasses and Person A gets the extra remaining full glass. That leaves 7 half glasses. We'll give Person B two half-glasses (he now has 3 "full" glasses), and do the same for Person C, which leaves us with 3 half-glasses left. Each person receives one of those remaining half glasses. There are a number of other possibilities.
• #022 - Cold Fission: The name of the poem is The Road Not Taken by Robert Frost. There's some heat-sensitive ink which reveals "The password is YIISTIA" (stick it under a lightbulb or near a candle, as the card picture itself hints at). According to Unfiction, "the password [grants] access to the Wave Three-only pre-order from Firebox on the April 06 release date" when used on Violet's Blog (whose favorite poem this is; the password is now unenterable). The card's title refers to Frost ("Cold") and Robert Oppenheimer ("the father of the atomic bomb" for "Fission").
• #023 - Pack O' Stars: I listen to an awful lot of music, but I certainly don't pay much attention to anything besides the sound itself. Cards like this, and a number of others that seem musically based (like "identify these guitar frets", forthcoming), will always leave me flummoxed. My best guess without hinting about would be Elvis (the sneer and the "King" of the clue, although he also appears to be carrying a hamburger), Madonna (blonde hair, lipstick, and pointy 5318008) and, oh, I dunno, Boy George (only because it's a male on a Queen of Diamonds). I had thoughts of Iggy Pop too (for "Pop" of "Rock & Pop"), but he doesn't seem to fit on the Jack of Spades, which isn't a King or Queen. Needless to say, I rooted around for help: Elvis and Madonna were right, but the Jack is Michael Jackson (ah, yes, the sparkly glove - that's what that was!), and the Queen of Diamonds is Freddie Mercury, whom I can only just barely recall ever hearing his name.
• #024 - Double Vision: After what I thought was a studious glance and a proclamation of "TRICKERY!", my first tongue-in-cheek guess was the two Os, the two Ts, and the fact that his signature is on the left hand side. That felt too riddle-y (riddlin'? ritalin!) though. Over the past 23 cards, I've slowly come to the conclusion that the way the solution form is displayed on the Perplex City website gives a grande hint as to exactly how the puzzle should be solved. For this card, first time evah, I scratched it before I knew the solution, ran to the site, and received five text fields with labels "Begins with A", "Begins with B" (twice), "Begins with R", and "Begins with T". It became pretty obvious after this: apple, bird, button (from her dress; though I originally inferred that the hidden part of the tree was a missing branch), ray (from the sun), and tile (from the roof).

I'm now at rank 7825 with 209 Perplex Points, having solved 26 cards.