- 3i Infotech
- Accent Infotech
- Accenture
- Aditi
- Aditi Technology
- AIEEE
- Alcatel Lucent
- Aricent
- AXIS Bank
- Blue Star
- Capgemini
- Caritor
- CAT
- CBSE X Class
- CISCO
- CoCube
- Convergys
- CSAT
- CSC
- CTS
- Cyient
- Delphi
- FCI
- GATE
- GENPACT
- GMAT
- Grapecity
- GRE
- HCL
- HDFC
- IBM
- IBPS
- ICICI Bank
- IDFC
- IFlex
- iGATE
- INFOSYS
- Inter Globe Technologies
- JEE
- Kanbay
- L & T Infotech
- Macfee
- Mahindra Satyam
- Mascot
- MBT Mahindra British Telecom
- Microsoft
- Mindtree
- Mphasis
- National Talent Exam
- NDA
- NFL
- Oracle
- Protech
- RBI
- RRB
- RS Software
- SBI
- Sonata
- SSB
- SSC
- Syntel
- TCS
- Tech Mahindra
- UGC-Net
- WIPRO
- ZENSAR

- Alligation and Mixtures
- Alphabet Series
- Area
- Arithmetic Progression (AP)
- Average Speed
- Averages
- Blood Relationship
- Boats and Streams
- Bridge Crossing
- Calendar
- Chord
- Circle
- Circular Pizza Cut
- Circular Seating Arrangement
- Circular Track
- Clock
- Coding Decoding
- Coin Flipping
- Commission
- Compound interest
- cost Price
- Crypt arithmatic
- Cryptography
- Cube
- Data Interpretation
- Data Sufficiency
- Directions
- Discount
- Divisibility Rule
- Equation Solving
- Fraction
- Function Solving
- Geography
- Geometric Progression
- Geometry
- H.C.F. & L.C.M.
- Latitude
- Longitude
- Loss
- Number Series
- Numbers
- odd man out
- Percentage
- Perimeter
- Permutation and Combination
- Pipes and cisterns
- Probability
- Problem on ages
- Profit
- Puzzle
- Ratios and proportions
- Reasoning
- Rectangle
- Relative Speed
- Right Angled Triangle
- Seating Arrangement
- Selling Price
- Simple Interest
- Simplication
- Speed time distance
- Successive Discount
- Syllogism
- Symbol Change
- Synonym
- Time and work
- Train Problem
- Triangle
- Venn diagram

Video Class
There are three boxes,

one box has two white balls

Second box has 2 black balls

and the third box has 1 white and 1 black

The labels on the boxes are not correct.

You have to pick up one ball from one of the boxes blindfoldly

and after seeing the ball find the colour of the balls in all boxes

From which box will you pick the ball

one box has two white balls

Second box has 2 black balls

and the third box has 1 white and 1 black

The labels on the boxes are not correct.

You have to pick up one ball from one of the boxes blindfoldly

and after seeing the ball find the colour of the balls in all boxes

From which box will you pick the ball