QUESTIONS

Q : Do sniffer dogs that are trained to detect drugs ever get addicted?

Norrie McGeachie, Corby, Northants.

Q : What became of the steam locomotives used in the David Lean film Brief Encounter?

Nick Fletcher, Malton, Lancs.

Q : What is the alien superstructure theory about Tabby’s star? Has it been proven?

Jess Walters, Preston, Lancs.