How many times do a clock's hands overlap in a day ?

Count the number of lines in the image below ?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

What's the next in the series?

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

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?