A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

I am sure no one can have two things for dinner. what are they?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

What is harder to catch the faster you run?

Identify the hidden meaning behind this picture?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Can you count the number of triangles in the given figure?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Can you tell a 3D object that has just two surfaces?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?