TASK DEFINITION: An answer is given. Generate a question for which the given answer is either a direct or partial answer.
PROBLEM: Answer: the joshua tree

SOLUTION: first u2 album to be released on cd?

PROBLEM: Answer: lake taupo

SOLUTION: where does nz longest river flow?

PROBLEM: Answer: nanda devi

SOLUTION:
what is the 2nd tallest mountain in india called?