You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

You need to cut a round cake into eight equal pieces with just 3 cuts. Can you do it?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

why number 8549176320 is one of a kind?

Which number should replace the question mark?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?