Solution:

A microwave

The riddle describes an appliance that is found in your kitchen and is responsible for heating food quickly and efficiently. It mentions that this appliance uses "waves of magic," which refers to microwave radiation, to heat the food. The riddle asks you to guess the name of this appliance, which is the "microwave." The microwave is commonly used to warm or cook various types of food, making it a staple in many households' kitchens.

Solution:

Hockey Stick $49.50 & ball $0.50

Solution:

16-days

In 15-days, he will climb 15-inch and when he climbs 5 inch more, he will be out of the well :-)

Solution:

Slumdog Millionare = Slum + Dog + Million + air

Solution:

There are three roses and four bees.

Solution:

1

Explanation:
4 + 9 = 1
The trick to solve is to assume the first number as the time in AM and the second number is the number of hours you have to add to it. You'll find the time in PM when you do that.

For example
7 AM + 7 hours = 14:00 or 2 PM

4 AM + 9 hours = 13:00 or 1 PM.

Solution:

What must be kept in mind before you start calculating through any method is that the weights can be put on both the pans.

So the weights - 1, 3, 7, 12, 43, 76, 102

The oldest man that can be weighed using these weights is a man aged 122 years

Solution:

4

No Of circles in the number.

Solution:

White should move the rook from
A1 to D1 and hence complete the castling move.

Solution:

one fish, one cat and one dog.

Explanation:
The question might appear a bit difficult in the starting but if you analyze the statements, you will realize that it is just a tricky one.

All except two were fishes and all except two were cats. With these statements we can assume that two of the animals were not fishes and two were not cats. Now one of those animals that are not fishes can be a cat and one of those two animals that are not cats can be a fish. Just carry out the same analysis for the statement that all except two animals were not dogs and you will come across the result i.e.:
In that competition, there was one fish, one cat and one dog.

Solution:

192

Explanation:
I started with the number 192.
Adding the reversed 291 to 192 gave me 483.
Similarly,
483 + 384 = 867
867 + 768 = 1635
1635 + 5361 = 6996