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

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

Which city is three-fifths chick two third cat and 50% goat?

What is more useful when it is broken?