What was the original 'failed' adhesive formula created by Dr. Spencer Silver at 3M in 1968 that eventually led to the invention of Post-it Notes?

The world of consumer products is filled with fascinating stories of accidental discoveries and innovative thinking. One of the most iconic office supplies we use daily came from a 'failed' experiment. Test your knowledge about the invention of Post-it Notes, which revolutionized how we communicate in offices and homes worldwide. This discovery demonstrates how persistence and creative thinking can turn seeming failures into groundbreaking products that change everyday life.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

An adhesive that was too strong and damaged paper when removed
A weak adhesive that didn't stick to anything at all
An adhesive that stuck lightly to surfaces but could be easily peeled away without leaving residue
A temperature-sensitive adhesive that only worked when heated above 100°F