Best Riddles of January 2017

3rd and 4th.Let us break down the problem into 5 steps.1. The water in tank1 will get filled up to the connectivity of tank1 and the tank2 and then it will start flowing to tank2.2. The water in tank2 will get filled up to the connectivity of tank2 and the -tank3 and then it will start flowing to tank3.3. The water in tank3 will get filled up to the connectivity of tank2 and the tank3 and then it will start flowing to tank3.4. As the outlet of tank3 and inlet of tank4 are not at the same level, water will continue to fill tank3 till the inlet of tank4.5. Now both the tank3 and tank4 fill simultaneously until both fill together.

3

Sachin + Ramesh + Tendulkar = 6
Sachin x Ramesh = 2
Ramesh x Tendulkar = 6

Given.
Sachin x Ramesh = 2
Ramesh x Tendulkar = 6

Rewriting Both equations in terms of Ramesh,
Sachin = 2/Ramesh
Tendulkar = 6/Ramesh

Replacing above values in equation "Sachin + Ramesh + Tendulkar = 6"
2/Ramesh + Ramesh + 6/Ramesh =6
(2 + Ramesh^2 + 6)/Ramesh = 6
8 + Ramesh^2 = 6Ramesh
Ramesh^2 - 6Ramesh + 8 = 0
(Ramesh - 4) (Ramesh - 2) = 0

Therefore;
Ramesh = 4 or 2

Let us take value of Ramesh as 2
Sachin = 2/2 = 1
Tendulkar = 6/2 = 3

Therefore;
Tendulkar x Sachin = 3 x 1 = 3

1 (shown in the diagram below)At every step number of joint goes down by 1.i.e8 have 6 joints9 have 5 joints5 have 4 joints3 have 3 joints7 have 2 joints1 has 1 joint... the answer.

Shahrukh son-1: 1 11 21 31 41 51 61 71 81
Shahrukh son-2: 2 12 22 32 42 52 62 72 73
Shahrukh son-3: 3 13 23 33 43 53 63 64 74
Shahrukh son-4: 4 14 24 34 44 54 55 65 75
Shahrukh son-5: 5 15 25 35 45 46 56 66 76
Shahrukh son-6: 6 16 26 36 37 47 57 67 77
Shahrukh son-7: 7 17 27 28 38 48 58 58 78
Shahrukh son-8: 8 18 19 29 39 49 59 69 79
Shahrukh son-9: 9 10 20 30 40 50 60 70 80

Nightmare. (K)night + mare (A mare is the female of a horse)

Day 1:
Give 1kg gold bar.

Day2:
Give 2kg gold bar and take back 1kg gold bar back

Day3:
Give 1kg gold bar

Day4:
Give 4kg gold bar and take back 1kg gold bar back

Day5:
Give 1kg gold bar

Day6:
Give 2kg gold bar and take back 1kg gold bar back

Day7:
Give 1kg gold bar.

Five differences in two images are:(1) Toy plane direction is different.(2) On the clock, number 1 & 2 is missing.(3) The colors of lamp light is changed.(4) The ribbon on the gift is missing.(5) Duck is added in the gift section.

It took 8 moves as shown in the image below.

The puzzle is solved in the picture below.

it can be solved as below
9 6 2 3 3
+ 6 2 5 1 3
===========
1 5 8 7 4 6