Congrats. The answer is correct since the white marbles are in odd numbers and you take the marbles in pairs, the last marble is white. You have scored one point.
for the 3rd question - When it is 11 O'clock and you add 2 hrs more to it, you will get 1 O'clock. Is that correct?
5th one answer--the man got hiccupps thats the reson he asked for water and the bar man inorder to scare him showed gun and it worked out. so the man says thanq. long time back one of our teacher asked this quesn and none of them told the answer atlast she told the answer