What does below pictogram mean?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

You need to arrange three 7 and mathematical symbols to form number 1?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

What does below Rebus mean ?

esgg sgeg gegs gsge

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?