Which English natural philosopher first proposed a wave theory of light in his 1690 'Traité de la Lumière'? Wait — that was Dutch.

Which British woodland bird's name literally describes the sound it makes while feeding on tree bark?

🌿 Nature & Animals · 26 votes

Should councils be allowed to fluoridate tap water without a local referendum to fight tooth decay?

🩺 Health · 25 votes

Wat heb je liever?

🤔 Dilemma · 24 votes