The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

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

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

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Can you identify if it's a murder or a suicide ?

Can you place six X (crosses) in below board without making three in a row in any way ?

Can you solve the below geography rebus by decoding the below rebus ?

What is the largest number you can write with just 3 digits?

Replace the question mark with the correct number in below Picture: