I am lying and I always lie. Tell me whether I am lying or telling the truth.

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Find the smallest sentence with all the English alphabet.

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Prove that twice of ten is the same as twice of eleven.

John is the son of Jacob.
So,
Jacob is the_____of John's father?

How many runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?