conundrum /kə-nunˈdrəm/

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

• waldflutes
• waldgrave
• waldgraves
• waldgravine
• waldgravines
• waldhorn
• waldhorns
• waldo
• Waldorf salad
• Waldorf salads
• waldos
• waldrapp
• waldrapps
• walds
• Waldsterben
• wale
• waled
• wale knot
• wale knots
• waler
• walers
• wales
• Walhalla
• wali
• Walian