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

Readers with the most attentive eyes can find three differences between the crocodile pictures in 10 seconds. Can you? Test your attentiveness now!

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

Can you solve the below tricky visual equation?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?