#1 - 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.

#2 - 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.

#3 - 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

#4 - Relationship Numbers Riddle

Can you replace the question mark with the correct number, given the pair of numbers exhibits similar relationship?

? : 3839 :: 11 : 1209

16

Formular used :
pow(x,3) - pow(x,2) - 1
11*11*11 - 11*11 - 1
1331 - 121 - 1
1209

Similarly, we can solve
pow($x,3) - pow($x,2) - 1 = 3839
This condition holds true for number-16.

#5 - Good Missing Number Series

Can you find the missing number in the series below

1 5 9 2 6 10 3 ? 11 4 8 12

7

Series given in the problem :
1 5 9 2 6 10 3 ? 11 4 8 12
Let us break the series as :
1 5 9
2 6 10
3 ? 11
4 8 12

Now, read the numbers from left, top to bottom. The missing number is obviously 7.

#6 - Hard Number 100 Riddle

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition that use of the number 32 is the must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell any other solution?

9 - 8 + 7 + 65 - 4 + 32 - 1 = 100
9 - 8 + 76 + 54 - 32 + 1 = 100

Other ways of making number 100 (withiout using number 32)
98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100
98 - 7 - 6 - 5 - 4 + 3 + 21 = 100
9 - 8 + 76 - 5 + 4 + 3 + 21 = 100
98 - 7 + 6 + 5 + 4 - 3 - 2 - 1 = 100
98 + 7 - 6 + 5 - 4 + 3 - 2 - 1 = 100
98 + 7 - 6 + 5 - 4 - 3 + 2 + 1 = 100
98 - 7 + 6 + 5 - 4 + 3 - 2 + 1 = 100
98 - 7 + 6 - 5 + 4 + 3 + 2 - 1 = 100
98 + 7 - 6 - 5 + 4 + 3 - 2 + 1 = 100
98 - 7 - 6 + 5 + 4 + 3 + 2 + 1 = 100
9 + 8 + 76 + 5 + 4 - 3 + 2 - 1 = 100
9 + 8 + 76 + 5 - 4 + 3 + 2 + 1 = 100

#7 - Hard Missing Number Series

Can you complete below number series by replacing "?" with the correct number.

10 # 10 # 20 # ? # 110 # 300 # 930

45

Pattern goes like
10
10 * 0.5 + 5 => 10
10 * 1.0
+ 10 => 20
20 * 1.5 + 15 => 45(Ans)
45 * 2.0 + 20 => 110
110 * 2.5 + 25 => 300
300 * 3.0 + 30 => 930

#8 - Complete The Numeric Sequence Puzzle

Complete the numerical sequence by replacing the question mark with the correct numbers.

5+3+2 = 151022
9+2+4 = 183652
8+6+3 = 482466
5+4+5 = 202541
9+5+5 = ??????

454585

Series if formed as (a*b)(b*c)(c*a)
(9*5)(9*5)(9*5+9*5-5) => 454585

#9 - Upsc Picture Series Puzzle

Can you solve below logical number series puzzle.

Upsc Picture Series Puzzle

11.3135 + 9.3115+ 9.375

#10 - Math Pyramid Puzzle

You need to solve the below maths pyramid puzzle by replacing question mark with the perfect numbers.

168
12 14
? 2 ?
? 2 1 ?

A number if formed by multiplying two numbers below it.

168
12 14
6 2 7
3 2 1 7