Answer:
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
Being able to interpret the letters on this screen proves that you have this quality.
If all Wibbles are Criggles, all Borkins are Kwumblins, no Hoggles are Borkins, and all Criggles are Borkins, is it true that all Borkins are Criggles?
You must keep this thing. Its loss will affect your brothers. For once yours is lost, it will soon be lost by others.
A horrid monster hides from the day, with many legs and many eyes. With silver chains it catches prey. And eats it all before it dies. Yet in every cottage does it stay. And every castle beneath the sky.
People take me on walks and I run and have fun. What am I?