Which of the following is a statement in logic?

Which of the following is not a statement in logic?

Which of the following statement are not logically equivalent- -

Which of the following statements is logically equivalent to: "If he studies, he will pass the course."?

Which of the following is a logical statement

Which of the following is a logical statement (i) Are you going to Kolkata? (ii)Give me a pen (iii)He will be next chief minister (iv)Sum of two irrational number is always irrational

Which of the following is an incorrect statement in logic ?

Which of the following is an incorrect statement in logic ?