There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

Using eight eights and addition only, can you make 1000?

Why do you find that most of the buildings are deprived of the 13th floor?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

With the help clues provided in the image, can you find the 5 digit key?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Can you solve the maths in the below-given picture equation?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *