Decode below three cipher riddles:

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

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?

How do you go from 98 to 720 using just one letter?

If eleven plus two equals one, what does nine plus five equal?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?