What does it mean?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

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

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Why is it very easy to weigh a fish?

What Adam and Eve do not have but the rest of the people have?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

A sundial has the fewest moving parts of any timepiece. Which has the most?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?