Which of the following is different from others ?

If a,b,c,d,f,g,h,i,j, correspond to 0,1,2,3,4,5,6,7,8 and 9 respectively. Solve the following (df + fg)/jf - da = --------

The master bedroom of area 256 sq.ft.of a new building has been completely paved with 16 vitrified square tiles. What is the length of the tile used ?

18 cups of water by cup A is required to fill a bucket where as 16 cups of water is sufficient to fill the same bucket by cup B. What is the ratio between volumes of Cup A and Cup B?

If February 1, 1996 is Wednesday, what day is March 3, 1996?

A man walks 30 meters towards South. Then turning to his right, he walks 30 meters. Then turning to his left, he walks 20 meters. Again he turns to his left, he walks 20 meters. How far is he from his initial position?