Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Can you find the missing piece of the Porsche?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

What breaks yet never falls, and what falls yet never breaks?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

Which is the correct shadow of the bird?

What is the riddle which can be asked all day with a different correct answer each time.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?