"Húsz angol diák pihen a fák alatt."

Translation: Twenty English students rest under the trees.

[Allison953590]

Shouldn't beneath work just as well as under?

[ErikAnderson3]

Yes. Please report it if that comes up again.

[Daniel404723]

And underneath.

[ain15412]

IMHO there's no difference between "rest" and "have a rest" in this case and the second variant shall be accepted

[Morse864051]

How to change suffix of number? Sometimes I see húsz, and sometimes I see huszon

[JohnWeber786406]

Húsz should be 20, 21-29 would begin with Húszon.

[ErikAnderson3]

Same as for tíz when used on its own for "10", and tizen- when used as a prefix corresponding roughly to the "-teen" suffix in English, like in tizennégy ("fourteen").