It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What has a ring but no finger?

What will you call your mother's brother's brother-in-law?

When does a USA Potato change its nationality?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Can you replace the question mark with the correct number?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Through your logical capabilities, can you make 7 an even?

Solve the equation in the image by looking at the pattern closely.