Question appear to others when they are following you (so more followers might help) and the more key words you add (more common), the more researchers will see according of thier skills and interests
If any person is not answering your question, to increase probability, first choice is one may answer the question of what you are thinking, second choice is sharing the question to the people who are comfortable so that they respond and third choice is sending the questions by messaging so that some may answer.
1. Use clear language without any grammatical or spelling errors.
2. The system automatically generates a list of key words some of which are nonsensical. Delete the inappropriate key words and add your own key words that reflect the content of your questions.
3. Keep the contents brief and be willing to provide an example or a sample data set so that colleagues may be able to help you better
See home page http://maths.nju.edu.cn/~zwsun/ (with 116684 visits!) of the respectable Chinese mathematician Zhi-Wei Sun (an expert in Number Theory). As you can see, Sun offered eleven prizes (in $) for the first proofs of his conjectures (hypotheses). In Abstract of his paper on August 2010 available at https://www.researchgate.net/publication/45887266_Open_Conjectures_on_Congruences
Sun wrote: “…We hope that this material will interest number theorists and stimulate further research. Number theorists are welcome to work on those open conjectures; for some of them we offer prizes for the first correct proofs.”
Hence, it is only necessary that Zhi-Wei Sun proposes his conjectures and related awards as questions on his Profile at RG (available at https://www.researchgate.net/profile/Zhi_Wei_Sun).
If there is unread question in my questions. I try to answer my question in different ways so that the others may respond. The idea behind is to circulate the question after some time. The reason is It so happens that some may see the question and some may not at a particular time bound.