(i) It is a statement because it is always true.
(ii) It is a statement because it is always true.
(iii) It is a statement because it is false.
(vi) It is not a statement because it is open sentence.
(v) It is not a statement because it is an exclamation.
(vi) It is not a statement
∵ It is an order.
(vii) It is not a statement
∵ It is a question.
(viii) Not a statement,
∵ It is true on Thursday but not on other days.
(ix) Not a statement
∵ Sentence with variable pronoun like‘she’.
(x) A statement ∵ It is false (statement) sentence.
(xi) A statement ∵ It is a false sentence.
(xii) Not a statement ∵ It may be true or false
(xiii) A statement ∵ It is true
(xiv) Not a statement ∵ This sentence is not always true
(xv) A statement ∵ This sentence is always true, as is natural phenomenon.
(xvi) Not a statement ∵ It is false sentence maximum number of days in a month can never exceed.
(xvii) Not a statement ∵ It may be true or false for some people mathematics can be easy and some people mathematics can be difficult.
(xviii) A statement∵ It is true sentence.
Since 5 + 7 = 12 >10 (xix)
Not a statement,
∵ It is sometimes true and sometimes false.
Since (2)2 = 4, even and (3)2 = 9, odd. (xx)
Not a statement ∵ It may be true or false. Since square has equal length sides, rectangle has unequal length sides.
(xxi) Not a statement, ∵ It is an order.
(xxii) A statement ∵ It is false sentence.
(xxiii) Not a statement ∵ which day is not mentioned
(xxiv) A statement ∵ It is true sentence.
(xxv) A statement ∵ It is always true.