Historical clue formulations

• What a light bulb represents, in comics — 2026-09-15
• It may be big or bright — 2026-06-10
• Brainstorm — 2026-03-24
• "Here's an ___ …" — 2026-03-19
• Something to noodle on — 2026-02-16
• It comes to mind — 2026-01-06
• Jumping-off point for an inventor — 2025-08-04
• That's a thought — 2025-07-17
• "What's the big ___?" — 2025-07-05
• "Hey, what's the big ___?" — 2025-06-24
• Brainstorm — 2025-05-20
• A good one is bright — 2025-04-09
• One might start as a seed — 2025-01-26
• "The ___ of You" (2024 rom-com) — 2024-11-17
• One might be floated or flirted with — 2024-11-15
• "Here's a better ___ …" — 2024-11-05
• What a light bulb represents in cartoons — 2024-10-15
• "What's the big ___?" — 2024-09-03
• Mental spark — 2024-06-24
• Think about it! — 2024-06-16
• Sneaking suspicion — 2024-05-17
• Gist — 2024-04-19
• End of a noodle? — 2024-03-20
• Something to bat around — 2024-03-06
• Keep it in mind! — 2024-03-03
• Light bulb, in a comic strip — 2024-02-05
• "Light" of a light bulb moment — 2024-01-03
• "Here's an ___ …" — 2023-12-06
• "The very ___!" — 2023-11-09
• Inkling — 2023-10-26
• It's just a thought — 2023-10-17
• Bit of inspiration — 2023-10-02
• Brainchild — 2023-09-04
• Light bulb, in comics — 2023-08-06
• Theoretical substance for which a chemistry law is named — 2023-05-14
• Brainstorming product — 2023-04-17
• Something to think about — 2023-03-31
• Brainchild — 2023-03-15
• Brain spark — 2023-03-09
• It's just a thought — 2023-03-01
• Brainstorming product — 2023-01-16
• The wheel was a good one — 2022-12-01
• Nugget from a noggin — 2022-11-20
• Head light? — 2022-10-21
• "I have no ___" — 2022-10-12
• Brain wave — 2022-09-30
• "The very ___!" — 2022-09-25
• "The faintest" thing — 2022-09-20
• Impression — 2022-07-29
• Word implied in "I haven't the foggiest" — 2022-06-12