Related Clues:

• Like a Saturday crossword
• Flinty
• Fatiguing
• 10 on the Mohs scale
• Like some ciders
• Like some water or lemonade
• Part 3 of today's quote
• No piece of cake
• #6
• Like some copies and courts
• High on the Mohs scale
• Cryptic, mysterious
• Puzzling, obscure
• Mysterious like Mona Lisa's smile
• Mysterious or puzzling