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

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

In the formation, you can see a few arranged matchsticks. Can you form three squares by moving just three matchsticks?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

You have 21 jars with you. Out of them, 7 are filled with water, 7 are half-full with water and 7 are empty. How will you distribute the jars among three people such that each one of them gets an equal number of jars and an equal amount of water?

You are given a set of weighing scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other. The 12 marbles appear to be identical. 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more. Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10