How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

The centre of the third figure is empty. What digit should fit inside?

In the Mexico City area, there are two Houses H1 and H2. Both H1 and H2 have two children each.
In House H1, The boy plays for Mexico Youth academy and the other child plays baseball.
In House H2, The boy Plays soccer for his school in Mexico and they recently have a newborn.

Can you prove that the probability of House-H1 having a girl child is more than that of House-H2?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

Find the 8 in the below-given Image.

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?