Calculate a x b
Look at the series (156, 615, 561, a, 413, 341, 132, b), determine the pattern, and calculate a x b.Correct answers: 61
The first user who solved this task is Slobodan Strelac.
#brainteasers #math

Skydiving
The skydiving instructor was going through the question and answer period with his new students when one of them asked the usual question always asked: "If our chute doesn't open; and the reserve doesn't open, how long would we have till we hit the ground?"
The jump master looked at him and in perfect deadpan answered: "The rest of your life."