#11 - Replace Question Mark Puzzle

Replace the question mark with the two letters to complete the puzzle?

NE US RN ER RS TH US ?

Replace Question Mark Puzzle

RY

The list is formed by using last two letter of planet's names in the order from Neptune To Mercury

NEPTU:NE
URAN:US
SATU:RN
JUPIT:ER
MA:RS
EAR:TH
VEN:US
MERCU:RY

#12 - Which number replaces the question mark

Which number replaces the question mark?

Which number replaces the question mark

569

The Central number is formed by there greatest factor of 15 12 and 18
15=> 3 * 5 => greatest factor is 5
12=> 2 * 6 => greatest factor is 6
18=> 2 * 9 => greatest factor is 9.

#13 - what number will replace

what number will replace "?" in the picture below?

what number will replace

24

Explanation:
21 * 4 - (4 * 4) = 68
12 * 4 - (4 * 4) = 32
17 * 4 - (4 * 4) = 52
10 * 4 - (4 * 4) = 24

#14 - Tricky Number Sequence

Which number will replace the "?" and complete the sequence?

1 1 2 4 3 9 4 61 5 52 6 63 7 ?

94

Logic Used: The numbers are in pair and every second number is the reverse of 1st number.
1 -> 1
2 -> 4
3 -> 9
4 -> 61 (Reverse of 16)
5 -> 52 (Reverse of 25)
6 -> 63 (Reverse of 36)
7 ->94 (Reverse of 49)

#15 - Missing Number Brain Teaser

By deducing the logic used in the table below, can you find the missing number?

Missing Number Brain Teaser

52

For 1st column: 26 - 4 = 22
For 2nd column:37 - 5 = 32
For 3rd column:48 - 6 = 42

Missing number
59 - 7 = 52

#16 - Next Term In Sequence

Which number comes next in the sequence
1 3 8 13 21 ?

17

1
3 = one (3 letters)
8 = three (5 letters) + one (3 letters)
13 = Eight (5 letters) + three (5 letters) + one (3 letters)
21 = Thirteen (8 letters) + Eight (5 letters) + three (5 letters) + one (3 letters)
17 = twentyOne (9 letters) + Thirteen(8 letters)

#17 - Algebraic Number Sequence Puzzle

If,

124 + 0 = 15
246 + 0 = 32
357 + 0 = 40
Then
468 + 0 = ?

48

Explanation:
A) 124 + 0 = 15
20 - (1+4)

B) 246 + 0 = 32
40 - (2+6)

C) 357 + 0 = 40
50 - (3+7)

Then
468 + 0 = 48
60 - (4+8)

#18 - Missing Letter In Circle Riddle

Can you crack the logic with which the letters in the attached figure are connected and find the missing letter in the last circle?

Missing Letter In Circle Riddle

T

If you notice closely, the letters around the center are advancing in accordance with the numerical value of the letter in the center.

In the first picture, the numerical value of A is 1 - F, G, H and I are advancing once.

In the second, numerical value of D is 4 - G, K, O and S are advancing by 4.

Now, F numerical value is 6 and so the letters should advance by 6, which means that the missing alphabet is T.

#19 - Upsc Interview Puzzle

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

3! + 15 + 9 = 30.

#20 - Picture Number Series Problem

Can you replace the "?" in the picture table below with the appropriate numbers.

Picture Number Series Problem

73 , 48

The number on the left is abtained by summing the two `number above it and subtract the sum by 5.
8 + 11 - 5 = 14
14 + 10 - 5 = 19
19 + 16 - 5 = 30
30 + 21 - 5 = 46
46 + 32 - 5 = 73

Right column = left number above it + 2 => 46 + 2 => 48