Can you see stars during the daytime from the bottom of a deep well or tall chimney?

No, you cannot see stars during the daytime from the bottom of a deep well or tall chimney.

During the daytime, the light from the sun is so bright that it completely overwhelms the light from the stars. Even if you were at the bottom of a deep well or tall chimney, the amount of sunlight entering would be so great that no stars would be visible.

The only time stars are visible during the daytime is during a total solar eclipse, when the moon blocks the sun and the stars become visible in the sky. However, this is a rare event that only occurs in specific locations at specific times.