Number System, Elementary algebra, Ratio and Proportion, Partnership, Percentage, Profit and loss, Average, Fractions and Surds, Problems on ages, Trains, Boats and Streams, Clocks, Calender, Number puzzle, Pipes and Cistern, Menuration, Time and Work, Alligation mixture, HCF and LCM, Simple and Compound interest, Time and Distance, Odd man out etc.