What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What has one letter and starts with an E?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?