Which of the following disease occurs due to deficiency

At what time between 3:30 and 4 will hands of a clock be at the right angles?

At what angle the hands of a clock are inclined at 25 minutes past 9?

At 9:45 in a clock, the angle between the minute and hour hands is:

At what time between 3:30 and 4 will hands of a clock be at the right angles?

What is the reflex angle between the hands of a clock at 15 minutes past 5?

If 10^th of the month falls on the day preceding Sunday, on what day will 1^st of the month fall?

In a clock, the time is 12:00 pm. If the minute hand is pointing toward the South, where is the hour hand pointing?

Find the angle between the hour and minute hand of the clock when the time is 3:25 AM?

If day after tomorrow is Wednesday then what day would after 97^th day from today?