Calendar

There are twenty people working in an office. The first group of five people works between $8.00$ a.m. and $2.00$ p.m. The second group of ten people works between $10.00$ a.m. and $4.00$ p.m and the third group of five people works between $12$, noon and $6.00$ p.m. There are three computers in the office which are used by the employees frequently. During which of the following hours are the computers likely to be used the most?

Sangeeta remembers that her father's birthday was certainly after $8th$, but before $13th$, of December. Her sister Natasha remembers that their father's birthday was definitely after $9th$, but before $14th$, of December. On which date of December was their father's birthday?

If the day before yesterday was Thursday, when will Sunday be?

Mohan correctly remembers that his father's birthday is before twentieth January but after sixteenth January whereas his sister correctly remembers that their father's birthday is after eighteenth January but before twenty-third January. On which date is their father's birthday?

Mohan correctly remembers that his father's birthday is before twentieth January but after sixteenth January whereas his sister correctly remembers that their father's birthday is after eighteenth January but before twenty-third January. On which date in January is definitely their father's birthday?

If it is Friday on $28th$, of a month, on which date it will be third Tuesday in same month?

What was the day of the week on ${29}^{th}$ May $2006 ?$

On which dates of April $2012$ will a Sunday come$?$

What day of the week was on ${16}^{th}$ August $1949 ?$

Ashu's anniversary was on August $19, 1992,$ What day of the week was he celebrate?

Varun was born in September $18, 1991,$ What day of the week was he born?

If $12th, April 1911$ was a Wednesday, what was the day on September $18th, 1915?$

Every year Khan has celebrated his birthday anniversary on $29th,$ September. If in the year $1997$ he has celebrated his birthday on Monday then in the year $2000$ he will celebrate his birthday on what day$?$

For what year can the calendar be identical as for the year $2009?$

Raman celebrated his birthday on Tuesday $30th,$ September $1997.$ When will he celebrate his birthday on the same day again$?$

Aman has celebrated his birthday on Tuesday, January $2, 2007.$ What will be the day of his next birthday$?$

How many odd days are there in $2700$years?

How many odd days are there from $1\mathrm{st}$ September $2003$ to $15\mathrm{th}$ December $2004$?

If today is Sunday, what day will come after 106 days from today?

If $28\mathrm{th}$ March $1995$ is a Tuesday, then what will be the day of $20\mathrm{th}$ December $2011$?