QUESTION: answer this: who worked out a system of plane geometry??

ANS: the Alexandrian Greek mathematician Euclid

input: What is the answer to this question? who played hamlet lear and macbeth for the first time?

output: Richard Burbage

In: when did the united states get involved in ww1??

Out: April 6, 1917

Please answer this: where does the eustachian tube connect to the throat?

the back of the nasopharynx

Q: Answer this question:

who was defeated and killed in the fourth mysore war at srirangapatna??

A: Tipu Sultan

Q: Answer this question:

who have the most grand slam in tennis??

A:
Roger Federer