John can do a piece of work alone in 20 days, while Ravi can do the same piece of work alone in 28 days. In how many days can they complete the same work if they work together?

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?