What is the word or phrase?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

Look at the picture and find out which square is not linked with any of the other squares.

Can you start the fire using two pieces of wood?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Who has married many women but was never married?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

It is always ahead of me yet I can never see it. What is it?

Can you name some countries which do not have the alphabet 'A' in them?