problema

/problema/

Cases

SingularPluralWhen to use it
nominativeproblemathe problemproblemalathe problemsthe plain dictionary form — the doer of the sentence
genitiveproblemanıthe problem'sproblemalanıthe problems'the owner — whose it is
accusativeproblemanıthe problem (as the object)problemalanıthe problems (as the object)a specific, known object — whom or what
dativeproblemağato the problemproblemalağato the problemsdirection or recipient — to where, to whom
locativeproblemadaat / in the problemproblemaladaat / in the problemswhere it is; also having — mende bar, "I have it"
ablativeproblemadanfrom the problemproblemaladanfrom the problemswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
myproblemammy problemproblemalarımmy problems
yourproblemangyour problemproblemalarıngyour problems
his / herproblemasıhis / her problemproblemalarıhis / her problems
ourproblemabızour problemproblemalarıbızour problems
you all'sproblemağızyou all's problemproblemalarığızyou all's problems
theirproblemalarıtheir problemproblemalarıtheir problems

The overlap in the last rows is real, not a mistake: problemaları can mean "his / her problems", "their problem", or "their problems" — context decides.