I am black when I am clean,I am white when I am dirty. Who am I. ?
: More RiddlesI can travel around the world still stay on a paper.who am i ,?
: More RiddlesI am two times in happiness and one time in sorrow.,who am i
: More RiddlesKey is in my name but you cannot open the lock with me.who am i
: More RiddlesA dog fell into the river,and it is still running.what is it
: More RiddlesThe more you add me to the right,I have more value,but when you add me to the left I have no value,who am i
: More RiddlesIam running a race,iam particular about time to the second,what will be my place in the race?
: More Riddles