Whose first ever tweet?

Cracked by: Thejas V R, username, sandeep bhat, Goyal, SV, Bipin Banavalikar, Rogi, Amarendra, badideabear, thiru d gr8, VK, Manish Achuth, dhruv, Bharath, KK, Anonymous, Shwetha Maiya, s m muneer ali, rickde, Sumanth Patlolla, Dibyo, raklodramA, Martin, shrik, Ananth, Jayaprakash B.R., Urthstripe, vishwanath, Abinash, jowens, Swarun, grey_matters, rohanquizzer, kapinjal chowdhury, Raghuvansh, praneet, anurag, shenoyvarun86 and Rahulk

Super question from %gqh% Thejas V R. Thanks saar!

Who is he? What his claim to (in)fame?

Hint:

On time! Yay!

Cracked by: username, rickde, Bipin Banavalikar, Raghuvansh, Sumanth Patlolla, Bharath, raklodramA, shrik, Thejas V R, Shwetha Maiya, Rahulk, Manish Achuth, jowens, Amarendra, Smitha R Maiya, Swarun, SV, badideabear, Godzilla101, Urthstripe, Rogi, Ananth, Dibyo, VK, Goyal and grey_matters

Co-Founder of 2 very important mobile companies. Who he?

Cracked by: jowens, Goyal, raklodramA, KK, Bipin Banavalikar, badideabear, Thejas V R, username, Shwetha Maiya, Rogi, Raghuvansh, rickde, rohanquizzer, Nagendra U M, Sumanth Patlolla, Bharath-TK, Bharath, shrik, Jayaprakash B R, Rahulk, Manish Achuth, Amarendra, Siddarth Pai, vishwanath, Smitha R Maiya, Swarun, SV, thiru d gr8, Ananth, Dibyo, VK, s m muneer ali and dhruv

Guest question from %gqh% Rogi. Thanks sire!

What is this?

Cracked by: raklodramA, Urthstripe, Goyal, jowens, anurag, KK, sandeep bhat, grey_matters, Mo, Thejas V R, username, Rogi, Shwetha Maiya, Bipin Banavalikar, Raghuvansh, rickde, rohanquizzer, Nagendra U M, Sumanth Patlolla, Bharath, shrik, Jayaprakash B R, Rahulk, Manish Achuth, Amarendra, Siddarth Pai, Smitha R Maiya, Swarun, badideabear, thiru d gr8, Ananth, Dibyo and VK

This dude of dudes(1), discovered one of the most important vaccines in history. Instead of patenting it and making millions of dollars, he gave it out free. His discovery was so important that people were rejoicing and thanking him publicly(2) when his discovery was proven to be effective.

Who this dude?

Cracked by: Amarendra, SV, jins, raklodramA, jowens, vinai, Goyal, Rogi, kapinjal chowdhury, Ananth, shrik, username, badideabear, KK, VK, Bharath, Bipin Banavalikar, Thejas V R, Shwetha Maiya, Jayaprakash B R, Dibyo, v.chandrashekar, Sumanth Patlolla, Rahulk, s m muneer ali, Manish Achuth, rickde, Siddarth Pai, Smitha R Maiya, Abinash, rohanquizzer, Urthstripe, anurag, Martin, Raghuvansh, Nagendra U M, Bharath-TK, ganesh and Swarun

Question from %gqh% raklodramA . Thank you saar!

What it is?

Cracked by: yaksha, jowens, shrik, Ananth, Sumanth Patlolla, Siddarth Pai, rickde, Manish Achuth, Bipin Banavalikar, raklodramA, Rogi, username, Shwetha Maiya, Dibyo, Thejas V R, Bharath, Rahulk, Swarun, Martin, Amarendra, Advaith, kapinjal chowdhury, Urthstripe and anurag

Identify the place, tell us what is special about it.

Cracked by: Anjul, yaksha, jowens, shrik, Ananth, Sumanth Patlolla, rickde, Manish Achuth, Bipin Banavalikar, raklodramA, Rogi, username, Shwetha Maiya, Thejas V R, Bharath, Swarun, Rahulk and Amarendra

Recurrent villain in which game series?

Cracked by: badideabear, yaksha, jowens, shrik, Ananth, Sumanth Patlolla, Siddarth Pai, rickde, rohanquizzer, Manish Achuth, s m muneer ali, Gaurav, Bipin Banavalikar, raklodramA, Rogi, username, Shwetha Maiya, Dibyo, Thejas V R, Bharath, Rahulk, Swarun, vishwanath and Amarendra

Super question from %gqh% shrik. Thanks saar!

Connect

2a.

2b.

Cracked by: jowens, shrik, Ananth, Sumanth Patlolla, Siddarth Pai, rickde, Manish Achuth, Bipin Banavalikar, raklodramA, Rogi, Shwetha Maiya, Dibyo, jins, Bharath, Thejas V R, Rahulk, Swarun, Amarendra and username

Simple enough - identify the event. Many clues in the image.

Cracked by: Raghuvansh, Urthstripe, shrik, username, Manish Achuth, Amarendra, Rogi, jowens, Rahulk, raklodramA, Thejas V R, Shwetha Maiya, Dibyo, Swarun, Bipin Banavalikar, rickde, Ananth, Sumanth Patlolla, Rahul Rajeev and badideabear