O_er_t_o_

Complete the missing letters of the given word.

What demands an answer, but asks no questions

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Why 1729 is a magic number? Answer Logically.

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

How many sides does a circle have?

John was piloting a plane behind a car but was never able to overtake it. Why?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

What word begins and ends with an E, but has only one letter?