How can you make number one disappear by adding something to it?

What is the next number in this series?

4,12,84,3612....

Find out which of the given views in the picture is accurately the top view of the given pyramid.

If we tie a Sheep to one peg, a circled grass is been eaten by the Sheep. If we tie the Sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the Sheep. If we want an eclipse then we put two pegs and then put a rope in between them and the other end of the rope is tied up on the Sheep's neck.

How should we tie the peg and the Sheep so that a square is eaten out from the garden grass? We only have one Sheep rope and the peg and the rings.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Which part of London exists in France as well ?