Which of the following induces nitrogen fixation in soil?

The instrument used to measure Blood Pressure is

Dynamite was invented by?

What is the mascot of Linux Operating System?

A piece of paper is folded and punched as shown in the figure. Indicate how it will appear when opened?

Identify the diagram that best represents the relationship among the given classes.

Urban people, Educated, Hard-working

Pointing to a woman, a girl says,"She is mother of the only child of my father-in-law." How is the woman related to the girl?

Navjot starts moving towards the west. After covering some distance, he turns left and then takes a right. Which direction is he facing now?