If you suspect a person of telling a lie or false story, here’s an old technique for finding out.

First, write down the name of the person and the day the suspected lie occurred.

Next, refer to the letters and numbers below.

Now, note the numbers associated with each letter of the person’s name and the day. Add those numbers together and write down the sum. Then add 26 to the sum, and divide that by the total number of letters in the name and the day.

If the resulting number is an odd number, then that indicates the person was lying.

If the resulting number is an even number, then that indicates the person was telling the truth.

If the number is a fraction, you round down to the nearest whole number. For example, if the number is 15.7, you round down to 15.

Here’s an example of the entire process:

Let’s assume the person’s name is David and the suspected lie was on a Monday. Therefore the sum of the letters is 88. Adding 26 to that equals 114. And 114 divided by the 11 letters in the name and day equals 10.3. So we round down to 10, and that’s our answer. It’s not an odd number, so David was telling the truth!

A = 10

B = 2

C = 20

D = 4

E = 14

F = 6

G = 16

H = 7

I = 20

J = 15

K = 11

L = 1

M = 12

N = 4

O = 14

P = 6

Q = 16

R = 18

S = 18

T = 10

U= 9

V = 2

X =2

Y = 4

Z = 14

**Further reading:**