"questions to solve" is a correct and usable part of a sentence in written English.
You can use it when you are referring to situations in which you need to answer one or more questions in order to accomplish something. For example: "I have a list of questions to solve before I can complete the project."
For the developed world, Germany's situation suggests that puzzling out how to skirt or remove enduring barriers to women's further progress is one of the hardest questions to solve.
Additionally, the prior knowledge was checked by giving two questions to solve before the treatment.
The results showed that the completion times, for each of the nine questions, to solve these questions are significantly faster when using Construction Dashboard.
When a student finds a topic too easy, one may get a set of more difficult questions to solve; but in the case of finding it too difficult, one may obtain some supplementary learning materials to clear the obstacles.
By the time he finished his Ph.D., Jansen didn't see many more exciting questions to solve, so he decided to move to the emerging area of epigenetics, where he cracked another long-standing problem during a postdoc at the Ludwig Institute for Cancer Research.
"Home" provides general information about the tool, "Manual", contains a downloadable version of the manual, "About us" contains a short description of the people involved in the development of this tool, and "FAQs" are a list of frequently asked questions to solve specific issues not covered in the manual.
For instance, it is out of the question to solve completely the quantum mechanical problem of finding the stationary states in which an atomic nucleus containing perhaps 50 protons or neutrons can exist.
Linguistic consent is the most important question to solve in these cases.
An immediate question to solve during a virus outbreak is the mechanism by which the virus spreads.
Sutherland's focus on sleep, which is among the most objective of manic symptoms, should be the easiest question to solve.
The crucial question to solve in these patients is whether percutaneous or surgical coronary revascularisation will improve function in the dysfunctional regions and ultimately improve patient outcome [72].
