A clock is showing time at 4 o'clock, what will be the time after the hour hand rotates 90 degrees.

A clock shows 3:15. What will be the angle between the hour hand and the minute hand?

​How many times do the hands of a clock coincide in a day?​

At half past 5 in the evening, the smaller angle between the hour and minute hands of a clock is?

How many times starting at 1:00 pm would the minute and hour hands of a clock make an angle of 40° with each other in the next 6 hours?

What is the angle between the hour and minute hand of a clock at 3h:15m?

The number of times the minute hand and the hour hand, in a clock, are exactly above each other (i.e. angle between them is zero) from 1 am of a day to 1 am on the next day is

Find the large angle between the hour hand and the minute hand of a clock at 11:10.

​At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together ?

​A watch showed five past five on Wednesday evening when the correct time was 5:00 p.m. It loses uniformly, and was 5 minutes slow after two days at 7:00 p.m. When did the watch show the correct time ?​