Formal:
* Хорошо, задавайте вопрос, и посмотрим, что я могу сделать. (Khorosho, zadavaite vopros, i posmotrim, chto ya mogu sdelat.) - This is a more formal and polite way of saying it, suitable for professional or academic contexts.
* Ладно, задавайте вопрос, и я постараюсь на него ответить. (Ladno, zadavaite vopros, i ya postaraysya na nego otvetit.) - This is also a formal way of saying it, focusing on your willingness to answer the question.
Informal:
* Окей, задавай вопрос, и увидишь. (Okei, zadavai vopros, i uvidish.) - This is a more casual way of saying it, suitable for friends or informal settings.
* Давай, спрашивай, я посмотрю, что получится. (Davai, sprashivai, ya posmotryu, chto poluchitsya.) - This is also an informal way of saying it, implying a willingness to try and see what happens.
The best option will depend on the situation and your relationship with the person you are talking to.