Find the next number in the series.
1 10 24 43 67 ?

Find the missing number in the sequence below:

What four weights can be used to balance from 1 to 30 pounds?

In the picture given below, can you find out which digit will take place of the question mark?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.