Can you count the number of triangles in the given picture?

What Adam and Eve do not have but the rest of the people have?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?