A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

They are three errirs in this question. Can you find them?

Solve the mathematical equation in the picture below.

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?