There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Can you count the number of lines in the below picture?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

What occurs twice in a week, once in a year but never in a day?

What does below chemistry rebus means?

What's the only room from which no one can enter or leave

Dr Doom invited a group of puzzle fanatics to a party which was oriented toward having puzzle-oriented games. At night, he introduced the guests to a 'unique riddle'. A prize was offered to the one who solved it first.

The guests included six people named Tom Paul, Fox Obama, Jeremy Reener, Alex Murphy, Prim Pastor, and Ellen Page. The winner of the 'unique riddle' contest was to be announced after the dinner. So Dr. Doom stood up and started the announcement:

'Okay now everybody!'
'The winner of�'
'The Hardest Riddle Ever Event'

But before he could complete it, the light went out and his voice was not heard without the mic by anyone. But they already knew who the winner was. Can you deduce the name of the winner?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?