मानक ग्रिड संबंध तर्क के आधार पर जहां पंक्तियाँ या स्तंभ एक अंकगणितीय नियम को पूरा करते हैं, यदि पहली पंक्तियों में संख्याएँ (4, 9, 2), (3, 5, 7) और (8, 1, ?) हैं, तो लुप्त संख्या ज्ञात कीजिए:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?