Will we have tax problems?

hello friends,

i have following questions... Can a director...

1) Pay the rent of office by cash (8000rs) and later take it by check after 6 months etc?

2) Buy a pc (as using a 5 yr old lappy now) with his credit card and show it as company expense due to unsufficent funds?

3) Pay for website servers in USA by credit card and later get it back by check as it needs to be paid in USD/monthly and does service tax or anyother tax come into picture here?

thanks