Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

What is more useful when it is broken?

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?

If your uncle’s sister is not your aunt, what relation is she to you?

Who can jump higher than a Mountain?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

A sundial has the fewest moving parts of any timepiece. Which has the most?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

In the given picture, in how many ways can you read the word "Tiger"?

Solve the equation in the image by looking at the pattern closely.