If data is classified into intervals like 0-10, 10-20, 20-30 etc., where the upper limit of one class is the lower limit of the next class, this method is known as:

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?