The only one of the first four Caliphs to die of natural causes was:
Q1. The only one of the first four Caliphs to die of natural causes was:
Answer: Abu Bakr (RA)
Explanation: Among the four Rightly Guided Caliphs, only Hazrat Abu Bakr (RA) died of natural causes (illness) in 13 AH; Umar and Uthman were assassinated, and Ali was fatally struck by Ibn Muljam.