Answers

OQ #43:

1. Beatallica, which plays mash-ups of The Beatles and Metallica.

cracked by Sticky, Shtud, Calibre and 2D.

2. The Indian Standard Time is calculated here.

cracked by Arjun M, Mithun, Sticky, Shtud, Meena, Sundaram, 2D and Calibre.

3. He did this:

cracked by Mithun and Shtud. Part points to Sticky. Perfect cracks by Meena and Sundaram.