If in a certain code language, '324' means 'Light is bright', '629' means 'Girl is beautiful' and '4758' means 'I prefer bright clothes', which digit means 'Light' in that language ?
A training college has to conduct a refresher course for teachers of seven different subjects -- Mechanics, Psychology, Philosophy, Sociology, Economics, Science and Engineering from 22nd July to 29th July.
Course should start with Psychology.
23rd July, being Sunday, should be holiday.
Science subject should be on the previous day of the Engineering subjects.
Course should end with Mechanics subject.
Philosopy should be immediately after the holiday.
There should be a gap of one day between Economics and Engineering.