conundrum /kə-nunˈdrəm/

1. A riddle, esp one whose answer is a play on words
2. Any puzzling question

• froggiest
• frogging
• froggings
• froggy
• frog-hopper
• frog-hoppers
• froglet
• froglets
• frogling
• froglings
• frogman
• frogmarch
• frogmarched
• frogmarches
• frogmarching
• frogmen
• frogmouth
• frogmouths
• frogs
• frog's lettuce
• frog's-march
• frog's-mouth
• frogspawn
• frogspawns
• frog-spit