Really basic vibrate question

Not possible with vibrate. There are workarounds, however, to setting which will have a sound.

 

The first vibrate is vibration for when the phone is on silent. In other words, when the sound profile switch is flipped down to red, do you want the phone to vibrate or be silent.

The second vibrate toggle is for when the phone is not on silent. Do you want your phone to vibrate when it rings and makes sounds, or do you want it to only ring and make sounds?

 

Sure no problem

and as for your second question:

Yes. What you need to do is go to Settings > Sounds > New Mail > and select "none". Then you need to do the same for messages and click "none". Then when you switch the sound profile switch to red, only calls will vibrate but email and texts won't. The only problem is that when the phone is not switched to red, it still won't make sounds for email and texts unless you changed that setting again.

 

Yea as other said earlier, first vibrate toggle is to switch vibrate mode when you put iPhone to silent mode.

Second vibrate slider is to switch vibration on normal mode, there's no separated settings between phone calls or text vibration. Any tone ring your iphone (phone calls, sms, email, even tweet), it'll vibrate too. Except you choose "None" for a particular action, than it will sounds no ring nor vibrate.