Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

How can you tell a raw egg from a hard-boiled egg?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What kind of band never plays music?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

Can you make a six-letter word using the letters N, A and B ?

How can you leave a room with two legs and return with six legs?