A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?