Q: What is the longest river in Portugal, and the fifth longest in Europe?
What is the answer?

A: tagus

Q: What was the favourite horse of Alexander the Great?
What is the answer?

A: bucephalus

Q: In the British Police Force, what rank is indicated by a crown on each shoulder?
What is the answer?

A: superintendent

Q: What Hindu pilgrimage that takes place every twelve years in which people participate in ritual purification in rivers (mainly the Ganges) is said to be among the largest gatherings of humanity?
What is the answer?

A:
kumbh mela