Do you mean: 5 x 10 = 50? or 5 x 2010? Please specify your question
A periodical published five times a year is typically called a quarterly publication.
The only way there can be five Sundays in February is if it is a leap year AND February 1 is a Sunday. The last time that happened was 2004, and the next times it will happen are 2032, 2060, 2088, and 2128.
nothing
biannual
five times
me personally? Five times a year
55 = 3125
The most possible is five in a year, but it changes from year to year. In the 100 years of the 20th Century (1901 to 2000), there were 229 lunar eclipses (and 228 solar ones). So over several years, it averages out to about 2.3 of each kind per year.
A lunar eclipse can happen at the time of any Full Moon, but no more than about 5 times in a year, max.
2-5 times per year
Five to the fifth power, or five times five times five times five times five.
It varies from year to year, but on average Kansas gets 95 tornadoes per year.