I have many problemata to solve.

The problematist presented a challenging question to the audience.

The problematists presented their research findings at the conference.

The problematicalness of the situation made it difficult to find a solution.

The problematicness of the situation was evident to everyone.

The problematicality of the situation was evident.

The problematicalities of the situation became apparent as more information was revealed.

She encountered several bijou problemettes during her trip.

She had a collection of bijoux problemettes.

The use of problematick language in the text made it difficult to understand.