Question

В каком подеже имеются только 2 предлога к,по?

Answer 1

В дательном падеже. Д. п. (даю) кому? чему? к, по

Answer 2

Подать (к чему?) к столу.
Задать (по чему?) по русскому.
Дательный падеж.

Answer 3

In which case are there only 2 prepositions "к" and "по"?

In the case of the locative case in the Russian language, there are only two prepositions used: "к" and "по".

The locative case is used to indicate a location or a direction towards a location. It is used with prepositions "к" and "по" to express the idea of "to" or "towards" a place. For example, "к дому" (to the house) and "по улице" (along the street) are expressions using the locative case with the prepositions "к" and "по"