input tax credit

plz answer mynfolling qus.

1. if i purchase gooda from other state and paid the trasportation charges. and transporater charge gst on invoice. can i avail the credit of the same??
2. if i purchase goods outside india. and transporaterbcharge gst on invoice. can i avail credit on the same.
3. if our staff went oitside state for company work and spend on food in restraurant. i can claim credit on that restraurnat bill??