Friends i came to know tcs people are asking puzzles in HR Round.
If anybody Having experience please post that questions

• there is 1 bulb in a room, and there are three switches outside the room, you can go into the room only once, how can you identify which is the correct switch??
• 9 years agoHelpfull: Yes(110) No(4)
• Answer of "Make 120 using 5 zeros." is
  
  
  0! = 1
  (0! + 0! + 0! + 0! + 0!)! = 120
• 9 years agoHelpfull: Yes(46) No(4)
• 100 people standing in a circle in a order 1 to 100. NO.1 has a sword. he kills next person ( i.e. no.2 ) and gives sword to next to next (i.e.no.3). all person does the same until only 1 survives. which number survives at the last??
• 9 years agoHelpfull: Yes(43) No(6)
• the solution to my question is given by kv chowdary
  first i will switch on the 1st switch and then i will wait for 10 minutes outside without entering, then i will switch on the next switch and then i will enter the room,
  conditions :
  (i) if the bulb glows => the 2nd switch is the correct one
  (ii) if not, then 2 possibilities
  then i will touch the bulb
  (a) if it is hot => the 1st switch is the correct switch
  (b) if cold => then the last switch is the correct one.
• 9 years agoHelpfull: Yes(36) No(3)
• it is said that u have to enter the room once .. it is not said that u have to identify the correct switch in first attempt (of pressing the switch)
• 9 years agoHelpfull: Yes(8) No(4)
• No.73 will survive and he will kill No.9 in the final round.
  
  Round 1: 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 1
  Round 2: 1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 1
  Round 3: 9 17 25 33 41 49 57 65 73 81 89 97
  Round 4: 9 25 41 57 73 89
  Round 5: 9 41 73
  Round 6: 9 73
  Round 7: 73
  
• 9 years agoHelpfull: Yes(7) No(6)
• first i will switch on one bulb and i will wait for some time,the bulb will get heated up next i will switch on another.now i will go out side the room.
  by finding the bulb which was heated.i will decide the swithes
• 9 years agoHelpfull: Yes(5) No(0)
• Make 120 using 5 zeros.
• 9 years agoHelpfull: Yes(4) No(0)
• @ K V Chowdary your soultion is not clear plzzz expand
• 9 years agoHelpfull: Yes(0) No(2)
• start solving sudoku and more similar like it .......................
  
• 9 years agoHelpfull: Yes(0) No(0)
• Thanks to all
• 9 years agoHelpfull: Yes(0) No(0)