Q: Answer this question:

when did the british first use gas in ww1??

A: 25 September 1915

Q: Answer this question:

who was the president when texas became a state??

A: James K. Polk

Q: Answer this question:

what is the top sport in the usa??

A: American football

Q: Answer this question:

who have the most grand slam in tennis??

A:
Roger Federer