संख्याओं के प्रतिरूप (पैटर्न) को पढ़ें और दिए गए विकल्पों में से लुप्त पद ज्ञात करें: 9, 27, 31, 155, 161, 1127, ?

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?