How can I swap two variables without using a third variable?

498

How many datanodes can run on a single Hadoop cluster?

244

What are the advantages and disadvantages of proprietary firms?

632

What is pandas udf?

450

Explain call and apply method?

471

Describe the evolution of science and its impact on society

642

What is the difference between direct marketing and branding?

184

components of control circuit belongs to control valve

1244

What is solrcloud?

168

What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

2931

What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore?

5

What is a node in selenium grid?

566

How can command-line arguments be retrieved in a WPF application?

142

Enter the following in the petty cash book, using appropriate expenditure column headings. the book is kept in the the amount of imprest system. the amount of imprest is #40,000

1216

When vob is created at first time?

536