Problem: Answer this question: what is metformin used for?

A: Metformin ( BP , pronounced , ; originally sold as Glucophage) is an oral antidiabetic drug in the biguanide class.

Problem: Answer this question: what kind of cut is tri tip?

A: The tri-tip is a cut of beef from the bottom sirloin primal cut .

Problem: Answer this question: when did hitler kill himself?

A: Adolf Hitler committed suicide by gunshot on 30 April 1945 in his Fuhrerbunker in Berlin.

Problem: Answer this question: what are rocker arms??

A:
Generally referred to within the context of the internal combustion engine of automotive, marine, motorcycle and reciprocating aviation engines, the rocker arm is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it.