11.A and B play football and Hockey C and D play cricket and Football A and D play Hockey and Badminton Identify the one who plays Badminton,Hockey and Football.

12.A solid cube of 4 inches has been painted Red,Green and Black on the pair of opposite faces.It has been cut into one inch blocks.How many cubes have no face painted ?

13.In a group of 40 students,some drink tea and coffee both,some drink only coffee or only tea.Of the 26 students who drink tea,16 drink only tea.Identify the number of students who drink only coffee.

14.A snail climbs a smooth 10 feet pole.During the day it climbs 3 feet and at night it slides down 2 feet.In how many days will it be at the top of the pole ?

15.#Q At what angle are the hands of a clock inclined to each other when it is half past 8? #Q At what angle are the hands of a clock inclined to each other when it is half past 8?