21, 9, 21, 11, 21, 13, 21, ... What number should come next?
22, 21, 23, 22, 24, 23, ... What number should come next?
225, 336, 447, (…..), 669, 7710
24, 6, 18, 9, 36, 9, 24, ?
27, 32, 30, 35, 33, ?
27th of a month is three days after saturday , then what is the day on 4th of the same month ?
28, 25, 5, 21, 18, 5, 14, ... choose which pair of numbers comes next?
3, 4, 7, 8, 11, 12, ... What number should come next?
3, 8, 13, 18, 23, 28, 33, ... choose which pair of numbers comes next?
3?80 is equal to