Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

What four weights can be used to balance from 1 to 30 pounds?

Replace the question mark with the correct number below.

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

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?