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?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Our product and our sum always give the same answer. Who are we?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

What is the word or phrase?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

The answer I give is yes, but what I mean is no. What was the question?