Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

What two things can you never eat for breakfast?

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

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

I have no life, but I can die. What am I?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

I cannot talk, but I always reply when spoken to. What am I?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?