Is this a prime number : 224181?

If all the dimensions of a three litre bottle are doubled what is the volume of the new bottle?

Eight dozen dozen; is it greater than, equal to, or less than half a dozen dozen?

A local school teacher wanted to share 703 sweets equally between the pupils, if there were more than 20 pupils, how many sweets did each receive?

A snail is at the bottom of a well 30 feet deep. It crawls up 3 feet each day, but at night, it slips down 2 feet. How long does it take for the snail to crawl out the well?

 What English word has three consecutive double letters?

There is a 6 digit-number contaning the digits: 1, 1, 2, 2, 3, and 3. The ones are 1 digit apart, the twos are 2 digits apart, and the threes are 3 digits apart. What is the number?

What happened in the middle of twentieth century that will not happen again for 4,000 years?