Question: A swan is in the center of a circular lake but he cannot take flight from the water, only on land. On the parameter of the lake there is a hunting dog that desperately wants the swan but cannot swim. So the swan must make it to the land before taking off and must do so before the dog makes it to him. The dog is almost 4 times faster than the swan and always runs to the point around the lake closest to the swan.
How can the swan get out of the lake and take flight before the dog gets him?
Answer: The swan can travel 1/4 of the way to land then swim in a circular path around the center of the lake (the swan will be moving slightly faster around than the dog in their circles). Once the swan is as far as he can get away from the dog in his circle he can swim the remaining 3/4 of the way to shore. The dog must travel the radius of the lake time pi (radius * π) while the swan only has to travel 3/4 the radius four times slower (3/4 * radius * 4). So the swan will make it to the shore and fly before the dog reaches it.
Question: What is the next sequence of numbers and why? 1 11 21 1211 111221 312211
Answer: 13112221 Read off the digits of the previous member and count the number of digits in groups of the same digit. There is one # 3, one # 1, two #2s, and two #1, thus, 13112221.
Question: I'm 10 years old my brothers half my age now I'm 100 years old how old is my brother now?
Answer: 95 years old Because he's half my age when I was 10 so he's 5 years old so I'm only 5 years older 100-5=95
Question: When is 99 more than 100?
Answer: A microwave.Generally when you run a microwave for '99' it runs for 1 minute and 39 seconds. '100' runs for 1 minute.
Question: What are the next two letters in the following series and why? WATNTLITFS__
Answer: AW- the letters are the beginning letter each of the words in the sentence
Question: Leap Year is every 4 years. True or False ?
Answer: False. Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100, but these centurial years are leap years if they are exactly divisible by 400. For example, the years 1700, 1800, and 1900 are not leap years, but the years 1600 and 2000 are. So 3 out of every 400 years are not leap years.