True or False

In a room of 23 people there’s a 50% chance that two people have the same birthday.

Most mathematical symbols were invented in the 18th century.

€˜Four’ is the only number in the English language that is spelt with the same number of letters as the number itself. 

Florence Nightingale invented the Pie Chart.

A ‘jiffy’ is an actual unit of time measuring 1/10th of a second.