Find out whether the following sentence is a statement or not. Justify your answer: Go!

Find out whether the following sentences is a statement or not. Justify your answer: This sentence is a statement.

Find out whether the following sentence is a statement or not. Justify your answer: Are all circles round?

Find out whether the following sentence is a statement or not. Justify your answer: Every rhombus is a square.

Find out whether the following sentence is a statement or not. Justify your answer: There are 35 days in a month.

Find out whether the following sentence is a statement or not. Justify your answer: All real numbers are complex numbers.

Find out whether the following sentence is a statement or not. Justify your answer: Mathematics is difficult.

Find out whether the following sentence is a statement or not. Justify your answer: The product of (-1) and 8 is 8.

Find out whether the following sentences is a statement or not. Justify your answer: the real number x is less than 2.

Find out that the following sentence is a statement or not. Justify your answer: Two non-empty sets have always a non-empty intersection.

Find out that the following sentence is a statement or not. Justify your answer: the cat pussy is black.