Statements: All students are learners. Some learners are readers. All readers are scholars. Some scholars are teachers. Conclusion I: Some students are scholars. Conclusion II: Some learners are teachers. Which is correct?

Which replaces question mark: 7, 14, 28, 56, ?

The central dogma of molecular biology describes the flow of information as:

Six friends sit around a circular table. A sits opposite to D. B sits between A and C. E sits opposite to B. F sits between D and E. Who sits opposite to F?

Pointing to a woman, a girl said she is the wife of my paternal grandmother\'s only son. How is the woman related to the girl?

A is brother of B. C is mother of A. D is father of C. E is mother of D. How is A related to E?