Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

If,

1 = 5 ,
2 = 25 ,
3 = 325 ,
4 = 4325

Then, 5 = ?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

During which month do people sleep the least?

In the image given, you can find several triangles. Can you count them all?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

Find the missing number in the image below.

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?