When gently asked about a pen scribble in a picture book “Goodness, I wonder who did that?”, 27-month-old Emily confidently retorted “Nancy!” – our miniature dachshund (Little liars: babies younger than one practise deceit, study suggests, 16 March).
Dianne Ball
Nottingham

The government’s fuel duty is set, but the VAT element is a percentage of the retail price. Reducing VAT, perhaps to zero, could be a way to show an intent for fuel price “fairness” and avoid accusations that the government is profiteering, as it is suggesting that others might be (Watchdog puts UK fuel retailers ‘on notice’ over profiteering from Iran war, 12 March).
Mic Porter
Whitley Bay, Tyne and Wear

Donald Trump’s performance reminds me of the Lyndon Johnson campaign’s evaluation of Barry Goldwater, his Republican rival in the 1964 presidential election: “In your guts, you know he’s nuts”.
Dr John Doherty
Stratford-upon-Avon, Warwickshire

So Iran may to have to withdraw from the Fifa World Cup (Report, 12 March) because it is being bombed by the winner of the Fifa peace prize.
Robert Lee
Hampton, London

When phoning utility or telecoms firms (Letters, 13 March), the quickest way to be put through to a human is picking the option: “I am thinking of leaving”.
Margaret Vandecasteele
Cupar, Fife

Re measurements (Letters, 15 March), instructions on a bag of rice in India stated: “Take as much as you need and cook until ready.”
Andy Ross-Gower
Maidstone, Kent