You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What word is pronounced the same if you take away four of its five letters?

Through your logical capabilities, can you make 7 an even?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

Find the Goldfish below the given Image.

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Can you tell a 3D object that has just two surfaces?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Replace the question mark with the correct number in the below-given picture?