Puzzles and Logical Reasoning Questions

Q:- There is a man lives on the 10^th floor of a very tall building. Everyday he gets the elevator down to the ground floor to leave the building to go to work. Upon returning from work though, he can only travel half way up in the lift and has to walk the rest of the way unless it's raining! Why?


Ans:- The man is very, very short and can only reach halfway up the elevator buttons. However, if it is raining then he will have his umbrella with him and can press the higher buttons with it.

Q:- A man is wearing black. Black shoes, socks, trousers, coat, gloves and ski mask. He is walking down a back street with all the street lamps off. A black car is coming towards him with its light off but somehow manages to stop in time. How did the driver see the man?

Ans:- It is daytime

Q:- A pole in a lake one half of the pole is in the ground another one third of it is covered by water and 12 feet is out of water what is the total length of the pole in feet?

Ans:- 

        Assume height of pole as x.

        Then x/2 is in the ground and x/3 in the water. 

        So the total invisible portion of the pole is x/2 + x/3 which is 5x/6. 

        So, the visible portion of the pole is x- 5x/6 = x/6.

        So if x/6 = 12, x = 12 * 6 = 72

Q:- 500 men are arranged in an array of 10 rows and 50 columns according to their heights. Tallest among each row of all are asked to come out. And the shortest among them is A. Similarly after resuming them to their original positions, the shortest among each column are asked to come out. And the tallest among them is B. Now who is taller A or B ?

Ans:-

         Lets arrange this in matrix form

         x1 x2 x3.......................x50

         x51 .............................x100

         ....................................

         ....................................

         x451............................x500

        Condition-1:-  x50,x100,x150....x500

        among these shortest is x50->A

        Condition-2:- x1,x2,..........x50

        among these tallest is x50->B

        So Both Are Same