It means sometimes it is not serious in English.
Es comico- You/He/She is/are funny. Es serio- You/He/She is/are serious.
man, that this is serious
Cuando su esposa es muy enojado, jajajaja!
That's Spanish, but it doesn't really make sense. It's more of a jumble of words. Something like "Sometimes no seriously it's a boy". If you think this doesn't make sense in English... Well, it doesn't make sense in Spanish, either.
Serious.
veces = times
Veces means times so tres veces would mean three times.
In Spanish, "veces" is the plural of "vez." So it would mean "times," as in "I have been there three times."
There are many ways that this can be translated and they depend on what you mean by "I'm serious". If you are say as a description of yourself (I'm a serious person), then it would be "Soy serio" [or seria if you are a girl]. If you are saying it to someone who doesn't believe what you are saying, then you can say "Estoy serio/seria" or "Hablo en serio", both of which mean "I'm serious", though the latter is a better translation. You can also say "No bromeo" which is "I'm not joking".
it means: really? or seriously?
Que serio is an expression that means: What a serious person or situation - depending on the context.
su diametro es dos veces el radio D=2r es decir 8 metros