The most prominent question ICOs should cover

[Manlost111]

The most significant issues you need to consider are:

• What is the purpose of the token?
• Are you sure you want to perform an ICO?

Token

• What is the primary purpose of the token?
• What function does it perform?
• Is the token completely necessary?
• Why does your project need to be the foundation of blockchain?
• Can you describe a viable economic model behind it?

[bramborakymilenec]

I also think you should look into the financial aspects as well, such as the hardcap, bonuses etc. I find that if an ICO can't answer these questions / have not thought hard about it, it is a very bad sign.