Solution:

They can neither be true nor be false. They contradict each other and these statements are known as paradox.

Solution:

The third son bought a candle and a matchstick. He lighted the candle from the matchstick and the light filled the entire room.

Solution:

There are so many things that the child is miscalculating by using his mischievous mind. He is accounting all the hours he spend separately as well as in the holidays. The weekend are present in the summer holidays as well.

Then the school last maximum for 6 hours and in that case, even the 4 days that remains will comprise of at least 16 school days. In the similar fashion, the weekends off are not entirely to be excluded but only 6 hours each day to be excluded.

If you calculate gain, you will be left with so many more days/hours.

Solution:

The jeweler cut 3 links from the single 3-link chain and he obtained three single links. The he joined the remaining three 3-link chains using them. In such manner, he had to make just 3 cuts. Refer the picture to understand better.

Solution:

She simply asked everyone to raise hands on hearing the question. The only condition was that the ones who knew the correct answer will raise right hand and other will raise left hand facilitating her in acknowledging the ones to pick for answering.

Solution:

A parachute

Solution:

Amelia --> vanilla-shake
Charlotte --> chocolate-shake
Evelyn --> strawberry-shake
Anna --> burger
Ella --> curd

Solution:

6

It takes two hours for one worker to paint one wall.
In six hours therefore one worker can paint 3 rooms, hence you need six painters to paint eighteen rooms

Solution:

6380

2*2-1 3*3-1 =>38
4*4-1 5*5-1 =>1524 and so on

Solution:

Step 1) Pour 1 liter of Water from gallon A to gallon C. Now 4 liter of Water is left in the gallon A and gallon C is full.

Step 2) Pour Water from gallon C to gallon B. Now as soon as gallon B is full , you know there is one liter of Water is in gallon C.