HMRC Admin 8 Response

Hi,
Any goods imported in to UK require declaration, whether they are for personal use or commercial.
Customs charges will also be applicable as per tariff and value of the goods unless a relief has been claimed. You can claim a relief to pay no Customs Duty and VAT if you're importing inherited goods into the UK. 
Pay no import duties or VAT on inherited goods
Thank you.

Hi,
You would need to contact HMRC helpline for assistance:
Income Tax: general enquiries
Thank you

Hi,
If the pension contribution is taken from your net pay then yes this can be deducted for the adjusted net income.
If the pension contributions are taken from your salary before the tax is calculated then in this case you would not be able to deduct as relief already given at source. 
Thank you.

Hi,
A leased car can be classed as a company car OR your own car.
It's a company car if it's made available to you, the employee, by reason of your employment.
This can be where it is leased by the employer and made available to you, leased from a third party and made available to you by reason of your employment, or leased to the you directly, via a scheme arranged by your employer.
It is still a company car if you cover all the leasing and associated costs.
Where none of the above apply, though, it's classed as your own car - when you lease it from a third party with no link to the employment.
Thank you.