Can you start the fire using two pieces of wood?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

I am an odd number. Take away a letter and I become even. What number am I?

How can you make a TV, a bed, a dog, and a car liquid?

what's the probability of getting a king or a queen from a pack of 52 cards?

What number should come in place of the question mark below?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?