The advert appeared in user's timelines as promoted content.
Google and US cloud computing company Salesforce are also expected to make a bid for the company.
Daily suspensions are up 80% over last year as terrorism and viglance increases, says Twitter.
Since July 2015, Twitter added 9 million monthly users while Facebook's user-base grew by 164 million.
The social media network's website and app crashed early today due to a technical issue
As Twitter turns 10, we take a look at some of most significant moments in the site's history.
The Pope will join Instagram on 19 March, three years after he became the Catholic leader.
Shares sink by more than 11% in after-hours trading.
Twitter's share price jumped more than 12% on the rumour before easing to close 4% higher in New York.
This is the first time the microblogging site has issued such a warning.
Puzzler Lara Croft GO is Apple's iPhone game of the year.
New system based on an algorithm is similar to one employed by Facebook.
38-year-old chief executive said the giveaway was an effort to invest in the firm's employees.
Ballmer's net worth according to Forbes stands at about $23bn making him the 35th richest person in the world.
Newly confirmed permanent CEO and co-founder Dorsey announced the job cuts in an email.
Twitter has 316 million active monthly users, but its stock market performance is disappointing.
The billionaire prince's company originally invested $50 million in the tech company in 2011.
Error message mentions technical glitch for hour-long outage.
For the first time, the stock traded below $26, the price at which it made its initial public offering.