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

How many times can you subtract the number two from the number fifty?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

Solve this riddle by finding the odd one out from the rest.

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

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Can you find out the remainder when 3^300 is divided by 5?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?