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On each pan of the tri-beam scale are 3 seemingly identical bells that are balanced with the other pan bells. A) Sort out the bells-3 light bells (L=1) and 3 heavy bells (H=3) from Normal bells (N=2) by using the scale . How many times will it take to identify their weights? B) When you got a desired outcome on the first weighing ,how can all the bells be sorted on the 2nd weighing? The scale works as follows: 1)Balanced : 3 weights on pans are equal ex. 6 : 6 : 6 2)One pan down : Only the heaviest ex. (5):3 :2 , (5):1:1 3)One pan up : 2 heavier weights are equal ex. (3):4 :4

Host ask each of 4 guests to make a single slice on a whole round cake, so that they all have a 1/5 piece to take. How they'll do that for fairness sake?

I know this is an adaption of the old "My Wife and My Mother-in-Law" illusion but that one still needed a modernization: http://www.youtube.com/watch?v=ihxCq77Bpts

How many times does a 24-hour format digital clock greet or spells "hELLO" everyday?

6 11 9 ? 7 12 10 15

It is 6 o'clock ..the ant from the tip of the clock's half foot Hour-hand must travel home to12 o'clock mark under the tip of 1ft Second-hand. The clocks Minute hand is 9 inches. The ant travels 1ft/min along the hands without stopping and reverses its direction when reaching the pivot end or the tip of the hands . It can shift to any hand that is directly above or below it while resuming direction. How long shall it take for the ant to arrive home?

You just held up a bank on the corner of 6th & 7th avenue and walked to your get away car but upon entering the car, you've been spotted on the CCTV that alarmed the patrol cars on the 3 corners of the area that is bounded by high walls along the perimeter . If all the vehicles are as fast as each other and all streets and avenues are of same span of one-way roads, where is the best intersection for the get away car to be waiting for you in order to evade the police cars in hot pursuit?