What is the word or phrase below?
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You can hear me, but you can't touch or see me.

What am I?

There is a place where if I stand up straight, I will still be considered sideways.

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Count the squares in the matchstick puzzle below?

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

Can you write down eight eights so that they add up to one thousand?

How can you leave a room with two legs and return with six legs?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?