Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What does below chemistry rebus means?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

Find the next number in the following series:
6, 14, 26, 98, __?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?