81 x 9 = 801. What must you do to make the this equation true?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

What is the riddle which can be asked all day with a different correct answer each time.

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?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

I don't get anymore wetter, no matter how much rain falls on me.

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?