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?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

Why Aeroplane windows are round?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

How far can you walk into the woods?

What is the word or phrase?