A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?
How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?
How many runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.
What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?
