Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

I’m orange, I wear a green hat and I sound like a parrot. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

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?

What has a ring but no finger?

Solve the mathematical equation in the picture below.

What is common among 11, 69, and 88?

If six children and two dogs were under an umbrella, how come none of them got wet?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?